(SOLD) I have a slightly used Knights Armament 2-stage trigger. Asking $250. NOW $215. I pulled it out of my Knights Armament M-4. It has already been factory adjusted so just drop it in your rifle. This is the best trigger you can buy for your AR-15. You can contact me at GunDisaster@Yahoo.com. I am located at Luke AFB in Phoenix Arizona. Thanks for looking. Dave.