My Account

product categories

Site Information

KNS Precision Bolt Catch Retaining Pin

  • Image 1
  • Image 2
  • Image 3
  • Image 4

KNS Precision Bolt Catch Retaining Pin

Product Code:
Calculated at checkout


*Weapon Type:


*Weapon Type:

MPN: Bolt Catch Retaining Pin


  • Replacement for the standard bolt catch roll pin
  • Tool-less installation - eliminate the risk of scratching you lower receiver during instillation 
  • Made in the U.S.A.

Note: This Perma Pin is for AR-15 bolt carriers only, does not fit .308 bolt carriers


  • Material: Steel
  • Finish: Black Nitride


The Armorer’s job is simple: assemble a variety of parts into a working firearm. Okay, it’s not that simple. Especially when some of those parts have a mind of their own, or so it seems. Traditional bolt catch roll pins are the sort of wicked little parts that seem to exist just to make ordinarily even-tempered guys into foul-mouthed lunatics. If there’s any doubt in your mind, just try to send one of those little devils home and wait until that pretty lightning strike scratch appears on your new receiver when the punch slips. Fortunately, KNS Precision elected to take on the problem of installing bolt catch roll pins by designing one that you can install without destroying anything. The KNS Bolt Catch Retaining Pin is here to make you love building guns again.

Simple Installation and Secure Retention

It’s time to install the bolt catch retaining pin, forget the hammer and punch, KNS made life better than all that nonsense. Simply place your KNS Bolt Catch Retaining Pin though it’s proper holes in the receiver and the bolt catch after placing the catch, it’s spring and detent. After the pin is placed you’ll simply install the included c-clip to secure the KNS Bolt Catch Pin and you’re done. No cussing, no scratches, no problem.

KNS Precision Produces Quality Parts That Make Sense

KNS Precision manufactures parts that solve problems. From anti-rotation pin sets and pivot pins that don’t require special tools or an act of Congress to install properly to the KNS Bolt Catch Retaining Pin, everything KNS manufactures makes shooting life easier and more secure than the traditional parts they replace. When you want a change for the better, upgrade to a KNS Bolt Catch Pin.

KNS Perma Pin for AR 01:49
  • KNS Perma Pin ...
    Replacement for old cotter pins for AR style bolts
  • KNS Perma Pin
    Installation of the KNS Precision, Inc Perma Pin. All of our ...
Write Review

  1. Bolt catch retaining pin 5 Star Review

    Posted by on 25th Apr 2018

    These are awesome. A brilliant answer to a difficult, and time consuming problem in assembling AR lower receivers. I can have the bolt catch installed in less than 20 seconds. Only negative being the extremely small size of the c-clips. But they give you a couple extra in case you lose one!

Back to Top