Adams Arms Standard Picatinny Piston Kit Mid Length

Kit includes: One piece bolt carrier, .750" Picatinny Gas Block with (3) settings, Gas plug, Bolt spring, Drive Rod with bushing and spring, Installation instruction card. This systme will work with .223/5.56x45mm NATO

Features:
Kit length: Mid 9.866""from barrel extension to shoulder
Self cleaning
Corrosive resistant coating processes
Adjustable gas settings for various applications
Short stroke free floating piston system