PDA

View Full Version : Your opinion on KNS non-rotation pins


Jicko
11-05-2008, 1:38 PM
Are they needed?

Will they "improve" the accuracy of the gun?

Or is it just purely for not wearing out the lower's hole?

http://pkfirearms.com/images/item_images/item_1630_1_lg.jpg

nobs11
11-05-2008, 1:51 PM
http://www.calguns.net/calgunforum/showthread.php?t=129145

Will do nothing for accuracy.

AJAX22
11-05-2008, 1:57 PM
they are really easy to install :D

the little brass fobb makes putting them in a breeze.

those look like the old style though, new ones use a different connecting rod.

Jicko
11-05-2008, 2:06 PM
These are the NEWEST ones.

They LOOK like Gen 1, but they are actually.... Gen 2.5 or Gen 3... these work like Gen 2, but have the Gen 1 look....

cleanguy46
11-05-2008, 2:08 PM
Those are 1st generation ones. About the only use is to keep the pins from coming out and rotating wearing the lower holes. I have them on my lower in FDE.

AJAX22
11-05-2008, 2:10 PM
No, I think Jicko is right,

The first gen had screws in both pins, the second was a big bar with one screw in one pin and the other held with a slot,

this looks like a hybrid...

homerm14
11-05-2008, 2:11 PM
Are they needed?

Will they "improve" the accuracy of the gun?

Or is it just purely for not wearing out the lower's hole?

http://pkfirearms.com/images/item_images/item_1630_1_lg.jpg

Not needed, will not improve accuracy, and debateably prevent wear on the lowers holes. That said if you don't mind spending the extra money they wont hurt anything.

cleanguy46
11-05-2008, 2:16 PM
I have the 2nd gen with the big bars. everything in the pix only the bars are same width tip to tip. I was told the pix are 1st gen but I could have been misinformed.

rayra
11-05-2008, 2:45 PM
Fashion statement. Does zip for accuracy.

Jicko
11-05-2008, 3:04 PM
I have the 2nd gen with the big bars. everything in the pix only the bars are same width tip to tip. I was told the pix are 1st gen but I could have been misinformed.

You HAD BEEN misinformed.

This IS Gen 2 (has 2 screws):
http://pkfirearms.com/images/item_images/item_986_2_lg.jpg

This IS Gen 1 (has 4 screws):
http://www.gunaccessories.com/AR15-M16Parts/LR-KNS-2.jpg

My original pic is Gen 2+, the 3rd one they came out with, and has 2 screws only.

RECCE556
11-05-2008, 3:09 PM
Those are gen 2.5/3. They LOOK like Gen 1 but work like the Gen 2's. Trust me, I've been using these since before they were en vogue....

What *I* like about them is that they prevent the pins from ever "accidentally" walking out and YES, that does happen even in "well built" lowers. They also help prevent hammer hole wear on FA lowers and when you have a $13K lower, you try to do everything you can to prevent wear.... but that's probably not much of a concern for CA subjects...

Gen 1 can improve trigger/hammer interfacing (since it maintains the correct geometry) but these don't help accuracy and most people probably don't need them. I buy them because $30 per lower isn't much for extra insurance and $30 per lower isn't going to keep me from making my mortgage payment....

DedEye
11-05-2008, 3:36 PM
I'm tempted to get them because I'm having issues with my Timney trigger. Never saw the use for them until I had to deal with the trigger pins constantly walking out due to the trigger not holding them in.

aplinker
11-05-2008, 5:20 PM
a Timney should be held by the set screws

I used KNS on high volume builds just for insurance

I bought them for the first time because I lost a trigger pin and the shop was out of stock except kns

DedEye
11-05-2008, 5:29 PM
a Timney should be held by the set screws

I used KNS on high volume builds just for insurance

I bought them for the first time because I lost a trigger pin and the shop was out of stock except kns

Should is the operative word. Mine isn't. Very annoying.

saki302
11-06-2008, 2:23 AM
I have them on my regged lowers, just in case :D

-Dave

ironcross
11-06-2008, 4:19 AM
I been wanting to get me a set. Im not sure what size the holes are on a Stag lower, and what Gen to get. Not trying to thread jack, info would be appreciated.

Thanks

Max-the-Silent
11-06-2008, 6:25 AM
They look trick, they do almost nothing.

I wouldn't waste the money, but each to their own.

Jicko
11-06-2008, 7:48 AM
I been wanting to get me a set. Im not sure what size the holes are on a Stag lower, and what Gen to get. Not trying to thread jack, info would be appreciated.

Thanks

http://www.pkfirearms.com/store/get_items.aspx?type=0&term=65

.154

Both Gen 2 or Gen 2+(called Mod2 on the website) works the same.... they just look different.... I personally like the 2+/Mod2 look....

Mississippi
11-06-2008, 9:12 AM
Have them on all my builds. Just gives me one less thing to think about. Dont have to think about the pins moving. Before I was always checking them for some reason.

cleanguy46
11-06-2008, 9:41 AM
You HAD BEEN misinformed.

This IS Gen 2 (has 2 screws):
http://pkfirearms.com/images/item_images/item_986_2_lg.jpg

This IS Gen 1 (has 4 screws):
http://www.gunaccessories.com/AR15-M16Parts/LR-KNS-2.jpg

My original pic is Gen 2+, the 3rd one they came out with, and has 2 screws only.


Thanks for the correction jicko. Next time maybe you can get your point across without going CAPS on someone. Thanks for the education!

redcliff
11-06-2008, 9:59 AM
They're recommended on 9mm builds, which are hard on hammer pins.

SunriseF150
11-06-2008, 10:10 AM
I like the looks of the Gen 2 better than the new Gen 2.5 design.

Jicko
11-06-2008, 10:16 AM
Thanks for the correction jicko. Next time maybe you can get your point across without going CAPS on someone. Thanks for the education!

Ok. Sorrie. :p

ironcross
11-06-2008, 2:18 PM
http://www.pkfirearms.com/store/get_items.aspx?type=0&term=65

.154

Both Gen 2 or Gen 2+(called Mod2 on the website) works the same.... they just look different.... I personally like the 2+/Mod2 look....

Thank you very much.

Capt. Speirs
11-06-2008, 4:01 PM
Are they needed?

Will they "improve" the accuracy of the gun?

Or is it just purely for not wearing out the lower's hole?

http://pkfirearms.com/images/item_images/item_1630_1_lg.jpg

My take on it is; my dad shot thousands of rounds through his M-16 in Nam and never had a problem with the pins or wear. I had asked him about it since I was building my first AR. He laughed and said "son, why don't you get a real gun, M1A. He actually used his M-14 when it got serious, thought the M-16 was a light weight. He also carried a Greasegun.

DedEye
11-07-2008, 12:26 AM
My take on it is; my dad shot thousands of rounds through his M-16 in Nam and never had a problem with the pins or wear. I had asked him about it since I was building my first AR. He laughed and said "son, why don't you get a real gun, M1A. He actually used his M-14 when it got serious, thought the M-16 was a light weight. He also carried a Greasegun.

He carried three weapons in Vietnam? Was his last name Rambo by chance?

leelaw
11-07-2008, 2:38 AM
The roll pins aren't necessary on 99% of AR builds; however, they will not hurt anything.

saki302
11-07-2008, 3:56 AM
Here's the thing- if your dad wore out his M16, he got a new one.

If you OWN a $13K+ transferrable FA lower, and wear it out, you're F%#$%#$ed!! :D

Thousands of rounds is also nothing- most FA owners shoot tens of thousands of rounds through theirs! IMO fun shooting consumes much more ammo than combat :D

-Dave