Firm, rubber, D-shaped ring surrounds the extractor spring to multiply extractor spring tension by 400%. Easy installation prevents virtually all extraction problems associated with AR-15 and M16 firearms. Mfg: M G I SPECS: Rubber, black. .068" (1.7mm)...
Tiny valve on top of the tube lets you adjust gas flow and bolt speed to match individual loads. Dial down to slow bolt for softer recoil impulse, close completely for single shot operation, or open up more for reliable cycling with light loads. Reduces...
Steel, rate-reducing buffer system slows down recoil two ways to improve accuracy and control. Extra weight lowers velocity for less wear on your bolt and receiver. Internal spring compresses to absorb additional recoil before it reaches your shoulder....