Search results for '45 acp'

Complete upper receiver assembly manufactured for 45 ACP and includes one 18 round polymer magazine. Standard with A2 upper receiver, but available with an optional picatinny flat-top upper.

Upper is 100% complete with bolt carrier assembly and charging handle. Ready to drop on any standard AR15 lower receiver. Simply attach the upper and swap out to the 45 ACP magazine, and you are ready to shoot. Swap back and forth between calibers in as little as 15 seconds!

This caliber conversion does not require the changing of hammer, trigger, buffers or buffer spring. No need to add in a magazine well adapter or mag well plug either. Designed to work with any standard , unmodified AR15 lower with A2 or collapsible stocks.

Other pistol calibers available: 9mm, 10mm and 40 S&W.