Rock River Arms RRA 9mm Heavy Buffer 5.5 oz Carbine Length
For use in 9mm AR15 uppers and semi-automatic AR15's in place of carbine buffers. Weighs 5.5 oz and uses mechanical reciprocation. It is also used to reduce cycle rate of the AR15 and felt recoil.
9mm Conversion Parts
What are typical Buffer Weights?
Standard Carbine Buffer 2.9oz
H Buffer 3.7oz