Mid Length Gas Piston System With Adams Arms 1 piece bolt carrier, Plastic handguards and handguard cap.

The Adams Arms Gas Piston System is an end user installed after-market product for Mil-Spec AR's.  It will fit on any AR barrel with a .750" or 3/4" diameter at the shoulder where the front sight base sits. The Rifle version will work on barrel lengths from 16" to 20" that has an existing rifle gas system.

We recommend Midwest Industries or Daniel Defense Free Float Handguards for Best Operation.

We will install for you for a nominal fee.
 

Feel free to ask all the question you have. We take the time to answer them all!