Calguns.net  

Home My iTrader Join the NRA Donate to CGSSA Sponsors CGN Google Search
CA Semiauto Ban(AW)ID Flowchart CA Handgun Ban ID Flowchart CA Shotgun Ban ID Flowchart
Go Back   Calguns.net > FIREARMS DISCUSSIONS > Centerfire Rifles - Semiautomatic or Gas Operated
Register FAQ Members List Calendar Mark Forums Read

Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

Reply
 
Thread Tools Display Modes
  #1  
Old 09-19-2019, 10:41 AM
tuolumnejim's Avatar
tuolumnejim tuolumnejim is online now
I need a LIFE!!
 
Join Date: Jun 2008
Location: Stagecoach, Nv.
Posts: 10,265
iTrader: 30 / 100%
Default Are there really any major differences in a lower parts kit?

Have a new upper on the way so I want to cobble a new lower together. But I'm seeing so many differing prices in lower parts sets its not funny.
__________________
Malo periculosam libertatem quam quietam servitutem
"I prefer liberty with danger to peace with slavery"
Count Palatine of Posen

“In a state where corruption abounds, laws must be very numerous.”
Publius Cornelius Scipio

The secret of Happiness is Freedom, and the secret of Freedom, Courage.
Thucydides (460 BC - 395 BC)
Reply With Quote
  #2  
Old 09-19-2019, 10:51 AM
FeuerFrei's Avatar
FeuerFrei FeuerFrei is offline
Calguns Addict
 
Join Date: Aug 2008
Location: sign said "Abandon all hope, ye who enter here"
Posts: 5,006
iTrader: 0 / 0%
Default

Most Yankee made parts kits work and present very little difference to the average user.
Buy American!

There are coated trigger parts/kits that really do make a difference and can be felt by the average user.
ALG, Failzero etc.. Yankee made too!
__________________
"Find out just what the people will submit to and you have found out the exact amount of injustice and wrong which will be imposed upon them and these will continue until they are resisted with either words or blows, or with both. The limits of tyrants are prescribed by the endurance of those whom they oppress."
-- Frederick Douglass --

“I didn’t know I was a slave until I found out I couldn’t do the things I wanted.”
– Frederick Douglass --
Reply With Quote
  #3  
Old 09-19-2019, 10:52 AM
green grunt's Avatar
green grunt green grunt is offline
Senior Member
 
Join Date: Oct 2008
Location: The Left Coast..middle end side
Posts: 1,050
iTrader: 28 / 100%
Default

yes there are differences ..... I've always had good luck with DPMS lpk,s , used a PSA once and the pins were abit oversize , all else were gtg....
__________________
Semper Fi.
Reply With Quote
  #4  
Old 09-19-2019, 10:56 AM
crosseyedshooter crosseyedshooter is offline
Member
 
Join Date: May 2013
Location: SF Bay Area
Posts: 485
iTrader: 38 / 100%
Default

There are some differences, but most reputable sources will have decent quality. No need to pay for genuine “Colt” parts but also stay away from no-name fly-by-night places. BCM and Geissele are safe bets, probably Spike’s Tactical as well. There are others but those would be my go-to.

The main differences, ignoring the trigger, are material and surface finish of the detents and springs which may rust or wear out faster (mostly the selector). I’ve replaced a worn detent in one rifle after about a year while other rifles with similar use still have positive clicks in the safeties.

I’ve had bad experiences with two bolt stops; one cracked and the other wouldn’t release without excessive force. Both weren’t functioning like my other ARs and needed to be replaced.
Reply With Quote
  #5  
Old 09-19-2019, 10:58 AM
alpha_romeo_XV's Avatar
alpha_romeo_XV alpha_romeo_XV is offline
Senior Member
 
Join Date: Jun 2006
Location: San Diego North County
Posts: 1,620
iTrader: 1 / 100%
Default

If you're including the trigger in the kit then the most significant differences are in that. Several kits exclude the trigger and grip because they know people go beyond mil spec for those.
Reply With Quote
  #6  
Old 09-19-2019, 11:07 AM
RHSth4's Avatar
RHSth4 RHSth4 is offline
Senior Member
 
Join Date: Feb 2016
Location: Wyoming
Posts: 990
iTrader: 31 / 100%
Default

I always use CMMG, never had any issues. But I also use the YHM extended takedown pins.
Reply With Quote
  #7  
Old 09-19-2019, 11:51 AM
CoopsDad's Avatar
CoopsDad CoopsDad is offline
Senior Member
 
Join Date: Jan 2013
Location: South Central... Texas! Waco area
Posts: 1,319
iTrader: 5 / 100%
Default

Quote:
Originally Posted by crosseyedshooter View Post
There are some differences, but most reputable sources will have decent quality. No need to pay for genuine “Colt” parts but also stay away from no-name fly-by-night places. BCM and Geissele are safe bets, probably Spike’s Tactical as well. There are others but those would be my go-to.

The main differences, ignoring the trigger, are material and surface finish of the detents and springs which may rust or wear out faster (mostly the selector). I’ve replaced a worn detent in one rifle after about a year while other rifles with similar use still have positive clicks in the safeties.

I’ve had bad experiences with two bolt stops; one cracked and the other wouldn’t release without excessive force. Both weren’t functioning like my other ARs and needed to be replaced.
Worn detents? Do you mean the brass detent pins themselves or the detent hole and groove in the safety selector cylinder?
Reply With Quote
  #8  
Old 09-19-2019, 12:08 PM
Mr. Meeseeks's Avatar
Mr. Meeseeks Mr. Meeseeks is offline
Veteran Member
 
Join Date: Jan 2008
Location: Los Angeles
Posts: 2,827
iTrader: 27 / 100%
Default

Lately I've been personally digging Tom's Tactical. They sell quality American made essential lower parts with free shipping.

Their LPKs are CNC machined from 8620 steel and have a lifetime warranty.

http://www.tomstactical.com/toms-tac...-trigger-group

Quote:
Tom's Tactical Webpage The Toms Tactical AR15 LPK Lower Parts Kit is premium quality and 100% made in the USA. The bolt catch, safety selector, magazine catch, magazine catch button, pivot pin, and takedown pin are all CNC machined from high quality 8620 steel (not MIM) and go through a 3 step heat treat process. This provides superior durability and quality over most other AR15 lower part kits on the market. Works with any mil-spec lower (including Anderson Manufacturing, Aero Precision, PSA, etc). All Tom's Tactical brand products include a lifetime warranty.
Reply With Quote
  #9  
Old 09-19-2019, 12:13 PM
stevie stevie is offline
Veteran Member
 
Join Date: Oct 2005
Location: Los Angeles Area
Posts: 3,667
iTrader: 156 / 100%
Default

I've have used CMMG, PSA, Andersen, DPMS, they all worked. Some just worked a little better than others for pin fitment.
Reply With Quote
  #10  
Old 09-19-2019, 12:30 PM
Mr. Meeseeks's Avatar
Mr. Meeseeks Mr. Meeseeks is offline
Veteran Member
 
Join Date: Jan 2008
Location: Los Angeles
Posts: 2,827
iTrader: 27 / 100%
Default

Quote:
Originally Posted by crosseyedshooter View Post
I’ve replaced a worn detent in one rifle after about a year while other rifles with similar use still have positive clicks in the safeties.
Quote:
Originally Posted by CoopsDad View Post
Worn detents? Do you mean the brass detent pins themselves or the detent hole and groove in the safety selector cylinder?
I've had this issue too, ironically, it was from a Daniel Defense LPK from '09, the tip of the selector detent lost its shape, making the selector mushy AF.

I replaced it and the detent in another AR I had at the time with KNS stainless steel detents. After that the selectors became deliciously positive and are still click-clicking nicely until today.

The current KNS detents are nitrided, so they might even be stronger now.
Reply With Quote
  #11  
Old 09-19-2019, 12:33 PM
jeremyro jeremyro is offline
Senior Member
 
Join Date: Jan 2013
Posts: 1,183
iTrader: 29 / 100%
Default

I have always used CMMG and been in good shape
Reply With Quote
  #12  
Old 09-19-2019, 1:16 PM
Triple765's Avatar
Triple765 Triple765 is offline
Member
 
Join Date: Feb 2018
Location: So-Cal
Posts: 424
iTrader: 3 / 100%
Default

Quote:
Originally Posted by Mr. Meeseeks View Post
... the tip of the selector detent lost its shape, making the selector mushy AF.
I've heard of that happening with bad LPK's too; Although, not from DD. Also trigger pin sizes being out of spec & problems with springs. I'll personally stick with BCM, Geiselle or ALG Defense.
__________________
Reply With Quote
  #13  
Old 09-19-2019, 1:29 PM
Scratch705's Avatar
Scratch705 Scratch705 is offline
I need a LIFE!!
 
Join Date: May 2009
Location: SoCal
Posts: 11,310
iTrader: 15 / 100%
Default

i have only used PSA kits, but if any part is bad i'll be sure to pickup a higher quality replacement piece.

i do use separate triggers though, ALG for my utility use ar15's, and i bought the larue mbt for my more precision setup ar15s.
__________________
Quote:
Originally Posted by leelaw View Post
Because -ohmigosh- they can add their opinions, too?
Quote:
Originally Posted by SoCalSig1911 View Post
Preppers canceled my order this afternoon because I called them a disgrace... Not ordering from those clowns again.
Quote:
Originally Posted by PrepperGunShop View Post
Truthfully, we cancelled your order because of your lack of civility and your threats ... What is a problem is when you threaten my customer service team and make demands instead of being civil. Plain and simple just don't be an a**hole (where you told us to shove it).
Reply With Quote
  #14  
Old 09-19-2019, 6:30 PM
jimbo74's Avatar
jimbo74 jimbo74 is offline
CGN/CGSSA Contributor
CGN Contributor
 
Join Date: Mar 2014
Location: NorCal
Posts: 2,183
iTrader: 4 / 100%
Default

I have used Andersen, BCM, PSA

No issues.

Except 2 of the Andersen's needed the hammer to be re-worked. There was a step on it, that shouldn't have been there causing a false reset. A file fixed it, after their CS said nothing was wrong. I don't think they even tried.

Sent from my SM-G965U using Tapatalk
Reply With Quote
  #15  
Old 09-19-2019, 6:42 PM
M76's Avatar
M76 M76 is offline
CGN/CGSSA Contributor
CGN Contributor
 
Join Date: Apr 2014
Location: Urbanized Suburbia
Posts: 1,638
iTrader: 82 / 100%
Default

+1 for ALG Defense

Most US manufacturers will serve you well, all mentioned above
__________________


1A - 2A = -1A

Quote:
Originally Posted by dunndeal View Post
Stop digging.
Reply With Quote
  #16  
Old 09-19-2019, 8:52 PM
therealnickb's Avatar
therealnickb therealnickb is offline
CGN/CGSSA Contributor
CGN Contributor
 
Join Date: Oct 2011
Location: Probably not in any line.
Posts: 5,539
iTrader: 40 / 100%
Default

These guys...

https://www.righttobear.com/product-p/a-vlpk.htm

...Do a nice job of letting you pick and choose each part.
__________________
There is nothing so tragic as the loss of a child. Parents and teachers have the right to protect them. They should also have the ability. 911 isn’t enough.
Reply With Quote
  #17  
Old 09-19-2019, 9:12 PM
deckhandmike's Avatar
deckhandmike deckhandmike is offline
Calguns Addict
 
Join Date: Jan 2011
Location: Morro Bay
Posts: 5,484
iTrader: 5 / 100%
Default

Good thread!
Reply With Quote
  #18  
Old 09-19-2019, 10:22 PM
Mr.Caketown's Avatar
Mr.Caketown Mr.Caketown is offline
Calguns Addict
 
Join Date: Jan 2011
Location: San Diego in your pants
Posts: 6,871
iTrader: 60 / 100%
Default

Ive bought CMMG , DPMS , Spikes and Rock River Arms for the most part and have had zero issues. I have had bad luck with PSA kits. In one kit the Thumb Selector switch was impossible to move without two hands and on a couple of AR builds I have had issues with pins not wanting to fit properly.

YMMV may vary but I learned im never buying PSA kits again (unless they are on a stupid dirt cheap sale or part of a kit)
__________________
WTB:
1)AR15 Aero Precision Skeletonized Lower
2)S&W 686 6in barrel ...686 No dash through 686-4
3) Saltworks M5 upper/lower set

Reply With Quote
  #19  
Old 09-19-2019, 10:24 PM
Triple765's Avatar
Triple765 Triple765 is offline
Member
 
Join Date: Feb 2018
Location: So-Cal
Posts: 424
iTrader: 3 / 100%
Default

Quote:
Originally Posted by Mr.Caketown View Post
I have had bad luck with PSA kits. In one kit the Thumb Selector switch was impossible to move without two hands and on a couple of AR builds I have had issues with pins not wanting to fit properly.
When I swapped to a ambi. safety selector, the spring was bent on one end when I took it out. I dunno if that's from normal use.
__________________
Reply With Quote
  #20  
Old 09-19-2019, 10:27 PM
Mr.Caketown's Avatar
Mr.Caketown Mr.Caketown is offline
Calguns Addict
 
Join Date: Jan 2011
Location: San Diego in your pants
Posts: 6,871
iTrader: 60 / 100%
Default

Quote:
Originally Posted by Triple765 View Post
When I swapped to a ambi. safety selector, the spring was bent on one end when I took it out. I dunno if that's from normal use.
In my case the diameter of the switch was off , I had to swap out from spare parts. It was a tight fit and I didnt want to drill out the hole for the selector
__________________
WTB:
1)AR15 Aero Precision Skeletonized Lower
2)S&W 686 6in barrel ...686 No dash through 686-4
3) Saltworks M5 upper/lower set

Reply With Quote
  #21  
Old 09-20-2019, 10:04 AM
Jimi Jah's Avatar
Jimi Jah Jimi Jah is offline
I need a LIFE!!
 
Join Date: Jan 2014
Location: North San Diego County
Posts: 13,878
iTrader: 1 / 100%
Default

I didn't care for the last CMMG parts kit I bought. The takedown pins were longer with a dish cut, very tight. The safety selector pin was sticky, couldn't figure out why until I replaced the grip. It had a chunk missing on the end.

Their quality has slipped.
Reply With Quote
  #22  
Old 09-20-2019, 10:26 AM
Syntax Error's Avatar
Syntax Error Syntax Error is offline
Veteran Member
 
Join Date: Nov 2009
Location: 캘리포니아인민공화국
Posts: 3,541
iTrader: 67 / 100%
Default

Quote:
Originally Posted by Mr. Meeseeks View Post
Lately I've been personally digging Tom's Tactical. They sell quality American made essential lower parts with free shipping.

Their LPKs are CNC machined from 8620 steel and have a lifetime warranty.

http://www.tomstactical.com/toms-tac...-trigger-group
Are they sure about that?





Their stock photo for their LPK appears to show obvious MIM cast holes for the bolt catch and hammer.

So unless their photos of their own LPKs are not correct on their site, not sure how they can claim that the hammer, trigger, and bolt catch are machined and not cast when the photos show obvious cast lines and MIM injection holes.
Reply With Quote
  #23  
Old 09-20-2019, 10:49 AM
Epaphroditus's Avatar
Epaphroditus Epaphroditus is offline
Veteran Member
 
Join Date: Sep 2013
Location: Where the McRib runs wild and free!
Posts: 2,755
iTrader: 4 / 100%
Default

Last couple Andersen LPK were missing a couple roll pins.
Reply With Quote
  #24  
Old 09-20-2019, 11:14 AM
DrjonesUSA's Avatar
DrjonesUSA DrjonesUSA is offline
Veteran Member
 
Join Date: Dec 2005
Posts: 3,158
iTrader: 6 / 100%
Default

I got a Spike's Enhanced that I was extremely impressed with and absolutely it
is way the heck nicer than your average kit.

- Came with an ERGO grip, which I really like.

- Came with a beautiful billet trigger guard that not only doesn't give you that damn "gap" but also doesn't require roll pins! It has spring loaded pins on both ends! SICK!

- Came with anti-walk pins.

Overall, the Spike's Enhanced is an extremely nice LPK & if any of the things I mentioned are important to you, I'd strongly recommend.

YES; there are differences between LPK's, as others have probably said. Notably is usually the trigger, hammer & sear, grip, etc.



https://www.spikestactical.com/colle...wer-parts-kit/






.
Reply With Quote
  #25  
Old 09-20-2019, 11:48 AM
Mr. Meeseeks's Avatar
Mr. Meeseeks Mr. Meeseeks is offline
Veteran Member
 
Join Date: Jan 2008
Location: Los Angeles
Posts: 2,827
iTrader: 27 / 100%
Default

Quote:
Originally Posted by Syntax Error View Post
Are they sure about that?

So unless their photos of their own LPKs are not correct on their site, not sure how they can claim that the hammer, trigger, and bolt catch are machined and not cast when the photos show obvious cast lines and MIM injection holes.
You may be right.

However, they don't claim that their LPKs are not "cast" they claim they're not "MIM".

Traditionally LPKs are made form cast parts which are then further polished and/or machined to get the final shape where it's necessary.

MIM and casting both utilize molds, part lines and other artifacts from molds appear in parts manufactured through both processes unless they're machined out.
Reply With Quote
  #26  
Old 09-20-2019, 11:58 AM
Barang's Avatar
Barang Barang is offline
His Glorious Reappearing
CGN Contributor
 
Join Date: Aug 2013
Location: Temporary here on earth
Posts: 4,319
iTrader: 18 / 100%
Default

i have good luck installing cmmg and stag arms.
__________________
Heb 9:27 "And as it is appointed for men to die once, but after this the judgement."

******* Consider your final destiny, there is no second chance there. *******
Reply With Quote
  #27  
Old 09-20-2019, 12:45 PM
Syntax Error's Avatar
Syntax Error Syntax Error is offline
Veteran Member
 
Join Date: Nov 2009
Location: 캘리포니아인민공화국
Posts: 3,541
iTrader: 67 / 100%
Default

Quote:
Originally Posted by Mr. Meeseeks View Post
You may be right.

However, they don't claim that their LPKs are not "cast" they claim they're not "MIM".

Traditionally LPKs are made form cast parts which are then further polished and/or machined to get the final shape where it's necessary.

MIM and casting both utilize molds, part lines and other artifacts from molds appear in parts manufactured through both processes unless they're machined out.
I think they're just using deliberately vague marketing terms. MIM is a form of casting. Yes, you would machine MIM parts, but they try to get away by claiming that their parts are "machined", when of course they would be for the critical surfaces like the sear surfaces and such.

When I hear "machined", I normally assume "machined from billet", hence the confusion with their marketing claim of being "machined" - yeah, machined from a MIM part like all the other LPKs out there.
Reply With Quote
  #28  
Old 09-20-2019, 12:53 PM
stevebla stevebla is offline
Senior Member
 
Join Date: Sep 2015
Location: North
Posts: 624
iTrader: 1 / 100%
Default

Larue MBT trigger $87.00 Can get straight bow, or single stage for same price.
https://www.larue.com/products/larue...bt-2s-trigger/

LaRue Tactical MBT-2S Trigger
In a world of instantly M.I.M.'d rifle and pistol components, we threw on the brakes, slowed to a walk, and built 2-stage triggers out of solid S7 tool steel plates. Meticulous triggers built by our staff toolmakers ... without a stopwatch in sight.

No question, we’re particular about accuracy. Everyone knows that one of the smartest improvements an AR-owner can do to their rifle is a precision trigger upgrade. Everyone also knows that LaRue Tactical has a track-record of doing things right. The LaRue MBT-2S was purposefully designed and manufactured to render the greatest benefits from our legendary line of accurate rifles. The MBT-2S can also replace the stock trigger on any mil-spec AR lower receiver.

Sparing no expense, all major components are precision-machined from S7 Tool Steel. The result of this extra effort is a glass-smooth, hyper-consistent trigger that will satisfy even the most scrupulous competition shooter, but also be overly rugged for the battlefield. The MBT-2S breaks crisply at 4.5 lbs (2.5 lb first stage, 2 lb second stage) and has a smooth and positive reset. Each trigger comes with an additional "heavy" trigger spring that increases the pull weight to 6 lbs.

Made in-house, in Texas, in the USA.

Last edited by stevebla; 09-20-2019 at 12:57 PM..
Reply With Quote
  #29  
Old 09-20-2019, 1:06 PM
Coolguy101 Coolguy101 is offline
Member
 
Join Date: May 2011
Posts: 418
iTrader: 1 / 100%
Default

The LPK is one critical part of the firearm that you should never skimp on. If someone is selling a LPK for half the price that one from a major brand goes for, that should be a red flag.

With the Chinese import LPK's, you can get parts that are out of spec, break, and fail. Why would you run that risk?

Same thing goes for the BCG, barrel, and upper receiver. Those parts should never be skimped on to save a few bucks. If you want to same some cash, do it on the hand guard, muzzle brake, or some other non critical part.
Reply With Quote
  #30  
Old 09-20-2019, 1:27 PM
Triple765's Avatar
Triple765 Triple765 is offline
Member
 
Join Date: Feb 2018
Location: So-Cal
Posts: 424
iTrader: 3 / 100%
Default

Quote:
Originally Posted by Coolguy101 View Post
The LPK is one critical part of the firearm that you should never skimp on. If someone is selling a LPK for half the price that one from a major brand goes for, that should be a red flag....If you want to same some cash, do it on the hand guard, muzzle brake, or some other non critical part.
I can stand by that.
__________________
Reply With Quote
  #31  
Old 09-20-2019, 1:51 PM
seal20's Avatar
seal20 seal20 is offline
Senior Member
 
Join Date: Nov 2008
Location: On the Mountain
Posts: 2,472
iTrader: 190 / 100%
Default

Only bad kit I ever used was Daniel Defense, it was also the most expensive... The trigger assembly was out of spec and it wouldn't reset without using the trigger forward.
Reply With Quote
  #32  
Old 09-20-2019, 2:38 PM
code_blue's Avatar
code_blue code_blue is offline
Veteran Member
 
Join Date: Sep 2012
Location: Sack-O-Tomatos
Posts: 3,334
iTrader: 135 / 100%
Default

Majority of these parts come from the same few manufacturers that make this stuff. There will be tolerance differences across the board.

Small components aren't as much of an issue as critical function parts like trigger parts and trigger springs.
Reply With Quote
  #33  
Old 09-20-2019, 8:33 PM
deckhandmike's Avatar
deckhandmike deckhandmike is offline
Calguns Addict
 
Join Date: Jan 2011
Location: Morro Bay
Posts: 5,484
iTrader: 5 / 100%
Default

Quote:
Originally Posted by Coolguy101 View Post
The LPK is one critical part of the firearm that you should never skimp on. If someone is selling a LPK for half the price that one from a major brand goes for, that should be a red flag.

With the Chinese import LPK's, you can get parts that are out of spec, break, and fail. Why would you run that risk?

Same thing goes for the BCG, barrel, and upper receiver. Those parts should never be skimped on to save a few bucks. If you want to same some cash, do it on the hand guard, muzzle brake, or some other non critical part.
Because in general they function fine and one is none but a dozen is plenty. I’ve never fired a gun in need. I’ve got plenty if I have to. I’ve shot tens of thousands of rounds with low end lpk and my only issues have been missing parts that they always fixed.

Last edited by deckhandmike; 09-20-2019 at 8:36 PM..
Reply With Quote
  #34  
Old 09-21-2019, 12:04 AM
dvs762's Avatar
dvs762 dvs762 is offline
Senior Member
 
Join Date: Mar 2007
Location: San Jose,Ca
Posts: 1,679
iTrader: 6 / 100%
Default

I usually use Windahm Weaponry LPK in my builds. Former Bushmaster company. I have never had any trouble with their parts and Ive spoken with the CEO and he assured me all LPK are made in the USA.
Reply With Quote
  #35  
Old 09-21-2019, 6:27 AM
The War Wagon's Avatar
The War Wagon The War Wagon is offline
Calguns Addict
 
Join Date: Apr 2011
Location: da' 'BURGH
Posts: 5,775
iTrader: 17 / 100%
Exclamation

You GET what you pay for : BCM & Daniel Defense are the only two I use.
__________________
Reply With Quote
  #36  
Old 09-21-2019, 6:48 AM
tocino tocino is online now
Member
 
Join Date: Jun 2012
Posts: 170
iTrader: 13 / 100%
Default

For my last 2 builds I used an Anderson kit and a PSA kit w/ an ALG trigger. I had issues with the Anderson kit trying to put the hammer and trigger pins into my spikes lower and another time the bolt catch pin backed out and I lost it at the range. No issues with the PSA kit
Reply With Quote
  #37  
Old 09-21-2019, 7:19 AM
billkohatsu billkohatsu is online now
Member
 
Join Date: Jun 2018
Posts: 114
iTrader: 9 / 100%
Default

Aero LPK without the fire control group is a great value set.
All of the parts were well-machined and fit without any issues. Granted I haven't put my rifle through a torture test so can't comment on long-term durability.
Reply With Quote
  #38  
Old 09-21-2019, 8:09 AM
Rifle ronin Rifle ronin is offline
Senior Member
 
Join Date: Apr 2016
Posts: 778
iTrader: 0 / 0%
Default

As for PSA stuff, I'll spend the measly $10 extra bucks for the ept lpk. It takes the rough creep out of the mil spec trigger.
__________________
I dreamed of owning a (insert off roster gun here)...

Oh yeah....then the earth splits open with me on one side and the (off roster gun) on the other. Then appeared a large red-glowing pit with gavin newscum, diane frankenstein and governor "brown the drain" at the bottom of it, waving their pitchforks at me.
(Non caps intended)

Last edited by Rifle ronin; 09-21-2019 at 7:33 PM..
Reply With Quote
  #39  
Old 09-21-2019, 8:35 AM
Jimi Jah's Avatar
Jimi Jah Jimi Jah is offline
I need a LIFE!!
 
Join Date: Jan 2014
Location: North San Diego County
Posts: 13,878
iTrader: 1 / 100%
Default

Never waste money on a LPK with a trigger and grip. The grip will be tossed out here and the triggers all suck.

Get a bare bones kit of pins and springs. Get a decent ambi safety selector. Buy a CA compliant grip. Buy a decent trigger. I like RTB nickel/Teflon triggers for $35 or the RRA two stage for around $75.
Reply With Quote
  #40  
Old 09-21-2019, 1:50 PM
Mr. Meeseeks's Avatar
Mr. Meeseeks Mr. Meeseeks is offline
Veteran Member
 
Join Date: Jan 2008
Location: Los Angeles
Posts: 2,827
iTrader: 27 / 100%
Default

Quote:
Originally Posted by Syntax Error View Post
When I hear "machined", I normally assume "machined from billet", hence the confusion with their marketing claim of being "machined" - yeah, machined from a MIM part like all the other LPKs out there.
All "cast" parts are not all "MIM" parts. However, MIM parts are cast parts.

Unless specified that they were machined from stock or billet, almost all AR LPKs, F-marked Front sight bases, and A2 birdcages are made from castings that are then further machined into their final form.

I think it's pertinent to this discussion to clarify for those unaware of these esoteric terms:

"Casting" (noun/verb) is a general term for all parts produced from molds, or any process that uses molds to create parts. When you've popped jello out of a bowl you've made a "casting of the bowl out of jello."

Conversely, a "cast" is a tool/mold traditionally, but not always, made from an existing part. When the doctor plasters your broken arm, he's "cast" you arm. In effect he's created the mold or "tooling" necessary to recreate the exterior dimensions of your arm. If you were to take your arm's empty plaster cast and fill it with wax or resin you'd have a copy of your arm.

MIM ( Metal Injection Molding), is a specific type of casting that doesn't use molten metal but instead powdered metal bound by a binder to fill the mold. It's more cost-effective (cheaper) because it's capable of producing small intricate parts which would be otherwise far more expensive to produce using the older traditional processes of casting and/or machining.

I'm not an expert on this, but I did have to learn it along with various other industrial manufacturing processes years ago to get my degree.

Last edited by Mr. Meeseeks; 09-21-2019 at 9:58 PM..
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -8. The time now is 6:32 PM.




Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Proudly hosted by GeoVario the Premier 2A host.
Calguns.net, the 'Calguns' name and all associated variants and logos are ® Trademark and © Copyright 2002-2018, Calguns.net an Incorporated Company All Rights Reserved.
Calguns.net and The Calguns Foundation have no affiliation and are in no way related to each other.
All opinions, statements and remarks made by Calguns.net on this web site and elsewhere are solely attributable to Calguns.net.