Shooting Innovations AR-15 LMB Low Mass BCG - Gray

LMB (Low Mass BCG) This BCG was designed with weight in mind. Feature high strength aluminum that has been hard anodized coated, the LMB weighs in at a mere 5.9 oz. As far as longevity goes, the shooter can expect 10k plus rounds of operating. The LMB is completely drop in and uses the existing spring and buffer. No modifications are needed for operating. Carrier – 7075 Gas key – 4130 pre hardened nitrided Bolt – 9310 heat treated, MPI inspected, nitride Cam pin – 8620 heat treated, nitride Firing pins – 416 SS heat treated, polished Proprietary 2 part anodizining, first coating creates a hard surface filling in all the pores of material, second coating creates another level of hardness while giving it that wonderful anodized metallic look. Weight  5.9ounces!