Works great - KNS Precision Adjustable Gas Piston System

Easy install, I’m talking super easy. Don’t feel like you have to drive the set pin all the way thru. It didn’t with my Mak90 and doesn’t have too. It’s only there to not let it thread out. Was very easy to adjust. Just screw it open about 15 clicks then load 2 rounds in your mag and shoot it. If the bolt strips the second into battery unscrew it 2 more clicks and repeat. When it doesn’t pick up the second shell screw it one click close and try one last time. It should load both and now it’s adjusted. Remember to run all your types of ammo in a single mag and make sure they all run reliably. If you set it for one type like wolf, it may not run Tula. So try them all. IF you replace parts in your gun, you may have to reduce