Adams Arms

Transform your existing AR-15 platform with the unique Adams Arms Piston System, and get the best prices on piston kits when you shop with 1800GunsAndAmmo. Adams Arms was the first to develop the AR piston kit, and it provides a wealth of advantages like less fouling, easy cleaning and superior cooling of the bolt. Adams piston systems are easy to install and fit a wealth of different AR models. In addition to the piston kit, you'll find complete Adams Arms rifle builds here with all their patented technology built in.

Change the way your AR operates with Adams Arms parts and build kits direct from 1800GunsAndAmmo, your gun store powered by freedom. is an authorized dealer of Adams Arms.