Brownells Ar-15/M16 Extractor Buffer

Tough, dense rubber insert replaces factory buffer inside the extractor spring to prevent X"Xextractor bounceX"X that can occur in rapid-fire conditions. Insert keeps the extractor from losing contact with casings and reducing faulty ejection of the spent casing. Sold in 10-paks. Mfg: Brownells SPECS: Rubber, black. .15" (3.8mm) long, .11" (2.8mm) diameter 10-paks.