Adams Arms Mid Length Piston KitKit 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)
Upper Receiver Bushing
Bushing Installation Rod
Drive Rod with Bushing and Spring
M4 Style Modified Handguards
Modified Handguard Cap
The Adams Arms Piston System:
A short stroke free floating piston system.
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.
This system requires a mid gas length (9.866" from barrel extension to shoulder) and a .750" gas seat.