Complete piston driven upper receiver from Adams Arms.
Build easily as a pistol or Short Barreled Rifle (SBR) with proper license (all NFA rules apply to SBR). Includes BCG and Charging Handle. UPGRADE AVAILABLE TO AMBIDEXTROUS HANDLE.
MAY BE MOUNTED TO PISTOLS OR REGISTERED SBR LOWERS ONLY
“- Melonite coated barrel: Melonite coating reduces internal barrel friction which extends the barrel life. Melonite coating also improves accuracy due to tighter coating tolerances and improves muzzle velocity by over 100 FPS. With no chrome lining to flake or peel over time, these melonited barrels will outlast hard chrome lined barrels two to one!”