Drop-On Installation Gives A Lifetime Of Improved Extraction
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.
AR-15, Issue:11, Page:038
Big Book Catalog, Issue:69, Page:035
SPECS: Rubber, black. .068" (1.7mm) thick.