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

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  #41  
Old 03-26-2020, 11:27 AM
grizzlyman123 grizzlyman123 is offline
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Originally Posted by California_Deplorable View Post
Are you dead set on an 18" bbl? I love my 16" 308ARs. I dont see any downgrade in practical accuracy at less than 300yds. Thats the maximum range I would use them anyway. Practically speaking, I'm only going to be shooting at 50-100yds, 99.9999999% of the time.

BTW, stay away from CMMG uppers. They are expensive crap.

I like 308ARs vs other 308 semiautos like the M1A and PTR91 because they are so easy to mount and use optics. The downside is the added weight from an optic. So I stick with 16" factory built carbines.

Except for a CMMG MK3, all the factory built 308ARs I've had were very reliable and accurate and did not need an adjustable gas block. I wont own any AR that needs an adjustable gas block to run reliably. I cant have suppressors anyway, that would be the only valid reason to even consider an adjustable gas block.

Stay away from CMMG MK3 uppers. They are heavy, expensive, unreliable crap with mediocre accuracy.
I am open to a 16" barrel, the only reasons I was thinking of the 18" was for less recoil and more accuracy.. Thats why I like the 308AR platform as well you can mount whatever you want how you want and its all adjustable

Is the recoil even that much different in an 16" vs 18"?
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  #42  
Old 03-26-2020, 11:36 AM
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Originally Posted by grizzlyman123 View Post

Is the recoil even that much different in an 16" vs 18"?
Not for me. I notice no difference at all. I mean its .308 not 5.56. So there is some recoil, but i think its silly to add 2" of steel to try and lower recoil. As for accuracy, upgrade the trigger. Thats more important than 2" of barrel.

My 16" .308 ARs recoil a lot less than my bolt guns with long barrels. The DI system takes a lot out of the recoil compared to bolt actions.
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And the lord appeared unto him and spoketh "tere henges". And he did knoweth in two weeks shall be the terrible boating accident whereas upon the mighty waves will the shoulder thing that goes up be lost beneath the sea. All rise. Sit down. Rise again. Sit down. Behold the non homo dancing. Amen

Last edited by California_Deplorable; 03-26-2020 at 11:40 AM..
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  #43  
Old 03-26-2020, 11:44 AM
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Originally Posted by grizzlyman123 View Post
Thanks for letting me know about that, I was not aware that there were a few different types DPMS patterns

My lower was bought in 2015 I didnt realize how poorly 308 AR platform has been done why dont they just unify it to make it simple
Oh, there is the AR10 (armalite) format as well, along with POF (patriot Ordinance Factory) too.

It is a mess.

I like my 308 AR types well enough, but the only one I trust is a piston Ruger Sr762 I got in a trade.

Personally, for 1200, unless you are looking for a precision rifle, I would just get a FAL and be done with it.

Of course, nothing wrong with having both

Regarding longer barrels and accuracy.
It won’t make a rifle more a curate, just make the projectile faster due to longer charge dwell time behind the projectile.
But more accurate?
No

My bad day rifle is a short carbine FAL.
If I can’t reach you with this, moving on is my best defense anyway.
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Last edited by SloChicken; 03-26-2020 at 11:48 AM..
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  #44  
Old 03-26-2020, 11:46 AM
grizzlyman123 grizzlyman123 is offline
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Originally Posted by California_Deplorable View Post
Not for me. I notice no difference at all. I mean its .308 not 5.56. So there is some recoil, but i think its silly to add 2" of steel to try and lower recoil. As for accuracy, upgrade the trigger. Thats more important than 2" of barrel.

My 16" .308 ARs recoil a lot less than my bolt guns with long barrels. The DI system takes a lot out of the recoil compared to bolt actions.
thats why I am seeking the advice of the experienced I have learned a lot

I am going to go with the 16" setup

What trigger would you recommend ?
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  #45  
Old 03-26-2020, 12:00 PM
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Originally Posted by grizzlyman123 View Post
thats why I am seeking the advice of the experienced I have learned a lot

I am going to go with the 16" setup

What trigger would you recommend ?
Pretty hard to go wrong with geissele. I prefer the Sd-c for a combat rifle, others like single action. i like a little takeup to let me know when I am there.
I have both, but in a 16Ē that would be (and is) my go to.
Same but lighter pull is the SD-E.

If u want to save some bucks I hear the GS 2 is good, but I havenít used one.
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  #46  
Old 03-26-2020, 12:15 PM
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Originally Posted by grizzlyman123 View Post
thats why I am seeking the advice of the experienced I have learned a lot

I am going to go with the 16" setup

What trigger would you recommend ?
Geissele SSA-E if you have the scratch, LaRue MBT if you want to save a few bucks and still have an excellent trigger.
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And the lord appeared unto him and spoketh "tere henges". And he did knoweth in two weeks shall be the terrible boating accident whereas upon the mighty waves will the shoulder thing that goes up be lost beneath the sea. All rise. Sit down. Rise again. Sit down. Behold the non homo dancing. Amen
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  #47  
Old 03-26-2020, 12:30 PM
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Originally Posted by downdiver2 View Post
Im in the same boat, and I just bought a Juggernaut Upper in 18". I however, exceed your budget with lower furniture and optics. But, I spent within you budget for my upper, if that helps.
is the a Juggernaut Upper the DPMS platform? it doesn't say on their website
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  #48  
Old 03-26-2020, 1:36 PM
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on edit all the 16" setups seem to be sold out

so I think this is the plan assuming this is DPMS compatible?

https://palmettostatearmory.com/psa-...th-bcg-ch.html

if so here is the build


https://www.aeroprecisionusa.com/m5-...ower-build-kit

Upgraded trigger
https://www.larue.com/products/larue...-bow-trigger/*


https://www.vg6precision.com/vg6-gamma-556**

Fixed magazine

Last edited by grizzlyman123; 03-26-2020 at 4:23 PM..
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  #49  
Old 03-26-2020, 4:38 PM
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Originally Posted by grizzlyman123 View Post
I dont want it to be overly heavy because as I want to be able to carry it with me in the field

I will be going with a factory upper build I dont want to mess with the gas blocks and all the components at this stage.
My PSA 18 incher is 8-ish pounds and came with an adjustable gas block.
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  #50  
Old 03-26-2020, 4:42 PM
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Originally Posted by grizzlyman123 View Post
on edit all the 16" setups seem to be sold out

so I think this is the plan assuming this is DPMS compatible?

https://palmettostatearmory.com/psa-...th-bcg-ch.html

if so here is the build


https://www.aeroprecisionusa.com/m5-...ower-build-kit

Upgraded trigger
https://www.larue.com/products/larue...-bow-trigger/*


https://www.vg6precision.com/vg6-gamma-556**

Fixed magazine
Doubt it. PSA's are compatible with PSA's.
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  #51  
Old 03-26-2020, 4:43 PM
grizzlyman123 grizzlyman123 is offline
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Originally Posted by sigstroker View Post
My PSA 18 incher is 8-ish pounds and came with an adjustable gas block.
dang thats a beast
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  #52  
Old 03-27-2020, 8:24 AM
grizzlyman123 grizzlyman123 is offline
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does anyone have suggestions where to find a 16" complete upper with adjustable gas system?

La Rue- doesnt make it
Aero--- sold out
Juggnernaught-- doesnt make it
PSA- not compatible apparently
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  #53  
Old 03-27-2020, 8:38 AM
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Originally Posted by sigstroker View Post
My PSA 18 incher is 8-ish pounds and came with an adjustable gas block.
I think you need to put that thing on a proper scale.
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To me, it was a fist-fight, except that I did not counter-attack.
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  #54  
Old 03-27-2020, 8:43 AM
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Originally Posted by grizzlyman123 View Post
does anyone have suggestions where to find a 16" complete upper with adjustable gas system?

La Rue- doesnt make it
Aero--- sold out
Juggnernaught-- doesnt make it
PSA- not compatible apparently
If you can find the components, it is ridiculously simple to assemble. As in legos easy.

You wil need just a couple tools and a vice to do it right.

Upper vice block
Vice
AR multi tool, or whatever tool the handguard maker uses that secures the barrel nut (comes with the handguard if not a standard barrel nut.
A few hand tools (open end wrenches, allen keys, possible a flat or phillips screwdriver and possibly a few torx.

But the technical part is bonehead easy.

If you donít have the BCG or barrel yet, look for manufacturers who match the bolt to the barrel for best accuracy.
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  #55  
Old 03-27-2020, 9:24 AM
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Quote:
Originally Posted by grizzlyman123 View Post
does anyone have suggestions where to find a 16" complete upper with adjustable gas system?

La Rue- doesnt make it
Aero--- sold out
Juggnernaught-- doesnt make it
PSA- not compatible apparently
Why do you want an adjustable gas block? Just get a factory built upper and be done. Only time anyone needs an adjustable gas block is to troubleshoot an unreliable homebuild or use a suppressor. Homebuilt "AR10s" are a money pit.

Do you really want a semiauto that is picky about ammo? I guess if you load your own and are using it as a precision bench gun but then you would get way more for your money if you go with a bolt action.
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Quote:
Originally Posted by 200Apples View Post
Civilization is four missed meals unwiped po0ps away from anarchy.
Quote:
Originally Posted by ibanezfoo View Post
And the lord appeared unto him and spoketh "tere henges". And he did knoweth in two weeks shall be the terrible boating accident whereas upon the mighty waves will the shoulder thing that goes up be lost beneath the sea. All rise. Sit down. Rise again. Sit down. Behold the non homo dancing. Amen

Last edited by California_Deplorable; 03-27-2020 at 9:31 AM..
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  #56  
Old 03-27-2020, 9:32 AM
grizzlyman123 grizzlyman123 is offline
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Originally Posted by SloChicken View Post
If you can find the components, it is ridiculously simple to assemble. As in legos easy.

You wil need just a couple tools and a vice to do it right.

Upper vice block
Vice
AR multi tool, or whatever tool the handguard maker uses that secures the barrel nut (comes with the handguard if not a standard barrel nut.
A few hand tools (open end wrenches, allen keys, possible a flat or phillips screwdriver and possibly a few torx.

But the technical part is bonehead easy.

If you don’t have the BCG or barrel yet, look for manufacturers who match the bolt to the barrel for best accuracy.
with your encouragement I am going to do that

I was looking at the parts individually and looks like I can build a 16" out with everything available


Ballistic advantage offers matching their barrel to the BCG---- has anyone had experience with their components?

Last edited by grizzlyman123; 03-27-2020 at 9:35 AM..
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  #57  
Old 03-27-2020, 9:57 AM
grizzlyman123 grizzlyman123 is offline
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What do you guys think of this build?

Am I missing any parts?

Upper Receiver
http://www.jlbillet.com/308-billet-upper-reciever/

Charging Handle
http://www.jlbillet.com/308-ar10-cha...xtended-latch/


Forward assist:
https://www.aeroprecisionusa.com/for...t-assembly-kit

Ejection Door assembly
https://www.deltateamtactical.com/LR...y-_p_5129.html


Muzzle Break
https://www.vg6precision.com/vg6-gamma-556

Barrel

https://www.ballisticadvantage.com/1...um-barrel.html
Options Gas Block
Melonite Gas Tube
Adjustable gas block
Nickel Boron BCG
The stainless steel gas tube is sold out

JT Fixed magazine mod
https://jtactical.com/products/ca-co...ar-alternative

---------------------------------------


Lower Parts Kit ---- Does anyone see an issue with this buffer setup?
Will upgrade trigger later on down the road
https://www.aeroprecisionusa.com/m5-...ower-build-kit



Handguard 12" FDE
still looking for a DPMS low profile

Last edited by grizzlyman123; 03-27-2020 at 10:15 AM..
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  #58  
Old 03-27-2020, 11:22 AM
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Quote:
Originally Posted by grizzlyman123 View Post
with your encouragement I am going to do that

I was looking at the parts individually and looks like I can build a 16" out with everything available


Ballistic advantage offers matching their barrel to the BCG---- has anyone had experience with their components?
I donít know ballistic advantage, but matching the chamber/barrel) to the bolt is proper.

My barrels have come from FN (found it at Numrich), and others from DPMS.
Aero should have some as well I would think

I would make it a habit to not buy PSA stuff in general. Quality has been poor.
Same goes for Century builds, Hesse, Enterprise, and so on lol, but that is a story for another time - likely wonít apply here.

I hate suggesting this, but maybe watch a couple yootoob vids for the lowdown on an ar build. Maybe ol larry at midway did one if so that is probably on point,

Good luck.


PS, you need drift pins as well btw.

A good set of brass drift pins to place the roll pins and a proper mallet (gas block, magazine release)
A set of tools all toolboxes should have
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Originally Posted by Cali-Shooter
To me, it was a fist-fight, except that I did not counter-attack.
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  #59  
Old 03-27-2020, 3:10 PM
grizzlyman123 grizzlyman123 is offline
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Originally Posted by SloChicken View Post
I donít know ballistic advantage, but matching the chamber/barrel) to the bolt is proper.

My barrels have come from FN (found it at Numrich), and others from DPMS.
Aero should have some as well I would think

I would make it a habit to not buy PSA stuff in general. Quality has been poor.
Same goes for Century builds, Hesse, Enterprise, and so on lol, but that is a story for another time - likely wonít apply here.

I hate suggesting this, but maybe watch a couple yootoob vids for the lowdown on an ar build. Maybe ol larry at midway did one if so that is probably on point,

Good luck.


PS, you need drift pins as well btw.

A good set of brass drift pins to place the roll pins and a proper mallet (gas block, magazine release)
A set of tools all toolboxes should have
PSA confirmed their stuff is a different design then DPMS

I haven't even heard of Century builds, Hesse, Enterprise but thats good to know to stay away from them lol

Ive been reading up and watching some videos on, youtube actually removed a really good video on the build process for some reason

Thanks I will add drift pins to the list, its always something
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  #60  
Old 03-27-2020, 8:55 PM
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Originally Posted by grizzlyman123 View Post

So how do you properly set up the buffer tube?
Yeah the buffer tube assembly was the real fly in the ointment for me.

While you can go with a rifle length tube, spring, and buffer, it is far easier to just go with a carbine length tube, spring, and buffer.

I went with an A2 rifle length set up and the spring was waaaaaay too beefy and caused me all kinds of headaches.

I ended up with a David Tubb flat wire spring (which fits either buffer tube) a regular rifle length buffer tube and buffer with 3 of the steel weights replaced with tungsten bringing it up to about 7.5 oz.

The added weight in the buffer is probably not necessary but it didn't hurt and the gun functions just fine now.
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