ADAMS ARMS Conv Kit 556NATO Fits 18-20" Barrels Black Hand Guard and 1-Piece Bolt Carrier Fits .750 Barrel Clamp-On AR Rifles RPS-D-ADA

ADAMS ARMS Conv Kit 556NATO Fits 18-20" Barrels Black Hand Guard and 1-Piece Bolt Carrier Fits .750 Barrel Clamp-On AR Rifles RPS-D-ADA Review

ADAMS ARMS Conv Kit 556NATO Fits 18-20" Barrels Black Hand Guard and 1-Piece Bolt Carrier Fits .750 Barrel Clamp-On AR Rifles RPS-D-ADA Feature

• Category: Upper Receivers/Conv Kits

Contains our 1 piece bolt carrier, handguards and handguard cap. The Adams Arms Gas Piston System is an end user installed after-market product for Mil-Spec ARs. 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 18" to 24" that has an existing rifle gas system. See the FAQ section for the measurements of a rifle gas system.