A BCG coated in Nickel Boron is one of the best upgrades that can be done for a rifle. Nickel Boron BCG's are able to take the cruelest of treatments and still keep the rifle running. The nickel boron is self lubricating, meaning that even after throwing dirt or sand into the BCG the rifle will still be functional. At the end of the day the only maintenance a Nickel Boron BCG will need is a quick wipe down with a rag.
Caliber: 5.56 and 300 Blackout