The OTIS eFECT Military Issue Maintenance Tool is built for weapons cleaning and maintenance of M4, M16 and AR-15 rifles. Compatible will all Otis 8/32 threaded end components for additional cleaning & maintenance capabilities. Technical Specs: Overall Length: 8.00 inches Handle Material: Stainless Steel Weight: 4.00 oz. UPC Code: 013658111875 National Stock Number (NSN): 5120-01-578-4888 MADE IN USA