Tough, dense rubber insert replaces factory buffer inside the
extractor spring to prevent “extractor bounce” 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.
SPECS: Rubber, black. .15" (3.8mm) long, .11" (2.8mm)
diameter 10-paks.
Catalog page 29