M-18K H1 AR15/M4 recoil buffer 3.9oz

Drop in replacement for your AR15/M4 carbine.
Absorbs recoil 
Creates faster follow up shots
Reduce rate of fire in automatics
Made from aircraft grade material, stainless steel and tungsten alloy
Improves accuracy in rapid fire
Reduce shock to optics or other mounted accessories
Measures approx: 3.25" when compressed
Weighs 3.9 oz
Multi caliber capable
US Patents 10,712,108 B2 and 11,054,200 B1
Made in the USA