The Angstadt Arms® EMT-9 PCC Trigger is an enhanced Mil-Spec pistol caliber carbine (PCC) trigger optimized for 9mm AR-15 rifles. Built to stand up to continued abuse from a blowback 9mm AR-15, this drop-in trigger upgrade features a set pull weight of 5.5-6 lbs. and meets the minimum pull weight of the US Military while remaining light enough for quick and accurate shot placement. A full power hammer spring ensures consistent ignition, while the disconnector is stamped 1070 steel and fine blanked for clean edges for a consistent reset. The trigger and hammer are precision machined from Mil-Spec 8620 alloy steel, and engagement surfaces are honed and polished to remove grit. Plus, a corrosion-resistant and slick Nickel Teflon finish helps provide lasting wear resistance and a crisp, reliable trigger. To top it off, an impact-resistant trigger and hammer pins help secure this trigger in your lower receiver for lasting reliability. Compatible with MDP-9, UDP-9, and 0940/1045 receivers. Optimized for a 9mm PCC firearm. Is also compatible with a standard 5.56 AR-15 rifle. Made in USA.