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Category:
Gun Gear and Parts
»
AR-15
»
Upper Parts
»
Bolt Carrier Groups and Parts
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AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
17 Customer Reviews
Our Low Price:
$7.97
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Manufacturer:
KNS Precision
PERMA
Item:
ARR-380
UPC:
851876003011
AR-15 Perma-Pin Firing Pin Retainer replaces standard cotter pin found in the bolt carrier to retain the firing pin; easy to install.
Made in the U.S.A. with a lifetime warranty from KNS Precision, Inc. For Warranty questions please contact:
KNS Precision, Inc.
112 Marschall Creek Road
Fredericksburg, TX 78624
1-830-997-0000
info@knsprecisioninc.com
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Average Customer Rating:
(17 Customer Reviews)
Write a Review!
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It broke
-
6/20/2012
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
1.0000
Reviewer:
K Dover
Pin broke when I pushed it in. Sorry I bought it.
KNS firing pin retainer
-
3/9/2012
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
1.0000
Reviewer:
Mike Phillips
I followed the instructions, and both broke upon installation. I have used this style in several AR-15s with no problems. These seem to be brittle
installation
-
9/21/2011
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
kam
I bought a couple of these after seeing all the problems people have had with them breaking. Once I had them, I ooked carefully at them and the bolt carrier, so long as you turn it so that the gap is vertical, checked by veiwing it in the light, it goes into place without any issues. I have used it and cleaned my gun half a dozen times and it is still going strong. One issue is removing it since it locks into place almost impossible to do without a tool. A bobby pin or spare firing pin works excellent.
Good product
-
7/20/2011
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
Daniel C.
Works well. I now have it on all 4 of my AR-15s. It takes a little effort to install the first time, but you really just have to follow the instructions. I am giving it 4 stars, because it is a little overpriced for such a small piece of metal. I'm sure it didn't cost more than a buck to manufacture.
Install
-
11/6/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
5.0000
Reviewer:
Tim
Purchased two after reading all of the reviews. I sanded with 2000 grit paper first, then inserted from opposit side with a little CLP. Still tight but slide in perfect. Installed pin correctly with no problems. Still have new pin as backup with the old cotter pin.
Retainer pin
-
10/29/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
2.0000
Reviewer:
Nick
I received this and like a lot of other people said, it broke when I was installing it. One of the little prongs on the end broke off. But, it still fits securely so I will keep my older cotter pin retainer pin just in case.
Fits
-
10/29/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
ZM
This was installed on a Del Ton DTI-15. I followed the directions on the cardboard insert and the tips found in these CTD reviews. I worked it in and out of the hole from the other side 2-3 times, then tried putting it in. I repeated working it in and out the other hole until it would fit through the proper side. It helps if you have a flashlight shining in through the back of the carrier group so you can be sure the pin is actually lined up with the right side hole.
Good enough for the next project
-
4/6/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
CBRGuy
I have well over 5000 rounds and 3 training classes with this in my Rock River now, no failures and it looks almost new. I just ordered another for my current upper build. I still say order a second for a spare as the biggest problem for breakage seems to be not getting it lined up 100% straight before applying pressure to seat the pin. It is tricky til you get it done once. I watched 2 people do it in class before I realized that I had done the same thing on the first one I broke.
No problem with this pin
-
3/19/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
5.0000
Reviewer:
Brad M.
Just to be quick and to the point, I'd ordered this to rectify that cotter pin deal on my Stag 3HL, prefer the old 'stoner' design myself. I can say this, all you guys that had issues with it, must've had bad luck or something. I worked the splayed end into the bolt carrier from the opposite side, not the pocketed side, a few times first to take off some of that coating, and bang, no problem whatsoever going in. I give it a 5 cause it doesn't seem this thing will break after time like the cotter pin will, if you got an AR, get it!
2nd one fit great 2!
-
3/13/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
5.0000
Reviewer:
face deprill
needed another pin for a build I'm working on... whatever. wearing the end of the pin in a little seems to be sure fire unless i have been fortunate enough to have received 2 pins that are made to the right diameter. watch for the .018'' difference i guess.
Nice fit!
-
2/23/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
Face Deprill
I was a little worried after reading reviews. The pin fit through the left side of the carrier but felt too tight for the right side, so I worked the pin in and out of the left side until the pin had some visible wear on the tip where it forks. It fit perfectly after that.
Poor quality
-
1/5/2010
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
1.0000
Reviewer:
WmG
This broke trying to put it in. I followed the directions. Why do I want to file my bolt carrier to insert this darn pin? Tolerances should be better than that for a $12 piece of metal this small.
Buy a couple
-
12/5/2009
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
CBR Guy
I ordered 3 and before I put one in my Rock River I put a micrometer to them. These had variances of .018 inches. The first one I tried, the largest one, subsequently broke. The second one fit perfectly. A worthwhile upgrade, just buy more than one. If you don't break it you got a spare.
works good
-
7/9/2009
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
Larry
Pin fit great in my Oly bcg almost like it was made for it, no problems. Put900 rounds down range after puting it in. Solid.
Bout Time
-
2/10/2009
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
5.0000
Reviewer:
Andy
Bout time someone went back to the original "Stoner" style of retainer. Fit the pin pocket of the carrier perfectly relieving that concern of mine. Instructions are clear and concise. If you break it during installation, well, you just didn't do it correctly.
mine works
-
2/3/2009
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
4.0000
Reviewer:
cable clown 1
Put mine in with the slit horizontal(like the instruction said) I've put about 500 rounds through my ar and have had no problem with it
P.O.C.
-
11/8/2007
AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
2.0000
Reviewer:
Rhino
peice of crap, broke on me the moment i put it into my bolt carrier.
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AR-15 Perma-Pin Firing Pin Retainer, Retain Firing Pin Like Original Stoner Rifles
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