KNS Perma-Pin Firing Pin Retainer PERMA

KNS Perma-Pin Firing Pin Retainer PERMA

Model:  PERMA

$9.00  $7.49 

Manufacturer:  KNS Precision, Inc.

Availability : In-Stock


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KNS Perma-Pin Firing Pin Retainer PERMA


Replaces standard cotter pin found in the bolt carrier to retain the firing pin as in original Stoner rifles. The cotter pin is difficult to install at times and is subject to breaking. LIFETIME WARRANTY. 

I love "one and done" solutions to common problems, and that's why the perma-pin is a must have!

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I am in the middle of a custom high end build and have been ordering the highest quality and best rated parts and accessories available for my new rifle and I decided to go with the KNS Precision Perma-Pin firing pin retaining pin to go with my solid hard chrome bolt carrier, WMD Nickel Boron Bolt and Firing pin and had high hopes for this pin, however when it arrived and I assembled the bolt carrier group and put in the KNS Perma-Pin I noticed it was a bit too loose and would fall out of the carrier if I turned the carrier on its left side so I had to use a factory cotter pin from one of my other BCG's on my other M4 and it fits well and does not fall out freely on that setup but on the brand new BCG for my newest baby it's a bit too small and a firing pin retaining pin should not easily fall out because it can be easily lost at home or at the range so it fits one of my M4 rifles BCG but not the chrome and nickel boron BCG so I don't know of o should just return it or buy a .308 size and see if that'll fit the chrome BCG? Billy C
-by Bill Collier

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