Shooting Innovations AR-15 LMB Low Mass BCG - Raw

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 – 7075Gas key – 4130 pre hardened nitridedBolt – 9310 heat treated, MPI inspected, nitrideCam pin – 8620 heat treated, nitrideFiring pins – 416 SS heat treated, polishedWeight  5.9ounces!