Adams Arms Standard Picatinny Piston Kit for AR-15 Rifle Length

This system will work with .223/5.56 x 45 mm NATO. 

Kit includes:

• Patented One-Piece Bolt Carrier
• .750” Picatinny Gas Block with 3 settings (full gas for standard fire half gas for suppressed no gas for single shot)
• Gas Plug
• Bolt Spring
• Drive Rod with Bushing and Spring
• Installation Instruction Card
• Our Piston Kits No Longer Require the Receiver Bushing or Installation Dowel

The Adams Arms Piston System:

• A short stroke free floating piston system.
• Is Self-Cleaning.
• Carbon and gases are expelled forward away from operator.
• Corrosive resistant coating processes.
• Harmonics are not transferred into the barrel.
• Adjustable gas settings for various applications.
• Doesn’t vent directly to atmospheric pressure; this eliminates flash signature and super sonic crack which is optimal for night vision and suppresses fire.
• Is 13.241″ from barrel extension to shoulder