Works in m&p 10-22 - OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms

works in m&p 15-22 (.22 lr) unlike fostec which requires full auto bolt profile. cons: not a polished, grit free pull. in binary mode there is significant over travel which needs to occur in order for proper binary function. because if this, proper trigger fundamentals go out the window while operating ( you start throwing your wrist back and fourth actually). but its fun. you should only expect to rapid fire under 25 yards at silhouette size target, and thats really pushing it-even with 22lr. i do not see any application for centerfire use as pistol caliber impulse will destroy it and rifle caliber has to much recoil for any amount of accuracy. it is neat however to slow fire as :pull -release- pull-release.