Retro Arms CNC 9 Steel Teeth Polymer Piston Body hammer spring Resulting in a flat

Resulting in a flat

DR details of this event

Additional improvements include a steel bolt locking plate which addresses a common issue with standard gas M4 systems where the bolt stop suffers from accelerated wear and quickly loses the last round bolt locking function

Looking to be a support gunner without breaking the bank

8" Genuine carbon fiber outer barrel

Retro Arms CNC 9 Steel Teeth Polymer Piston Body hammer spring Resulting in a flatPolymer body featuring carbon fiber and molybdenum infusion CNC milled and heat treated 9 tooth piston rack Final tooth shaved for angle of engagement improvement Injection molded body Compatible with nearly all AEG gearbox versions and internal parts One of a kind construction and design Designed to be used with high speed dual sector gear builds