KNS Precision Hammer and Trigger Pin Mod. 2 Non Rotating .154 Inch

Title says it all. They're easier to install than the factory roll pins and the head covers up mild elongation if you didn't make this upgrade when you bought your rifle. I have found cheaper anti-rotation pin options but this one works well and looks good, too. All in all, I care about function over the looks so not sure if I'd spend the extra $$ again. Definitely better than leaving the roll pins in, though. The guide it comes with is pretty nice to aid installation.

I installed these pins on 3 AR's they work as designed. I recommend these over any others.

These are absolutely necessary for all AR builds using polymer or carbon 50 lowers. The hammer and trigger pin holes take a beating and tend to enlarge over time. Installing this kit takes some of the stress off the holes and assures the pins will not shift or fall out. This is a great product. PA continues to offer some of the best products on the market for AR and AK projects.

Shooting many rounds at the range and having your trigger suddenly lift up an disappear is not cool. Not to mention looking around in the gravel to find the missing pin. I was really aggravated so once i got home I ordered a bunch of these and haven't had a problem since. They are super easy to install and solved my problem. I totally recommend this system of pin retention, no need to purchase trigger hole reamer like many other brands.

This is my third set of these pins, two sets I had installed with drop in triggers to prevent the pins from falling out. This last set is installed on a milspec type FCG for an added sense of security and also because I've grown to like the looks of the product. Shipped same day, product is as described.

Bought a set of these a while back to stop rotating pins in a mil-spec lower, and got more than expected. Not only do they install super easy, but improved trigger pull also. liked them so much that i ordered another set. Thanks PA, for a great deal and fast shipping.

Super fast shipping from Primary Arms, the KNS Hammer & Trigger Pins were simple to install, look good, and provide an extra level of integrity to the trigger/hammer install.

Had a question and Keith at Primary Arms guided me to the KNS mod. 2 non rotating pins. They were simple to install and work as advertised.
Thanks Keith and Primary Arms for your help.

Simple and sweet

Have one of these on each of my AR versions.