This Bolt carrier group from Black Rain Ordnance has an extensive list of features. This BCG has a full, M16 profile. This differs from standard AR-15 BCG’s, as the M16 BCG’s carry more mass. Some feel that this can result in increased reliability. The theory is that, due to the increased mass, the BCG has greater momentum. This greater momentum means that your BCG is less likely to become jammed from dirt, debris or any other cause.
This BCG is a very high quality component that has been Magnetic particle Inspected (MPI) and High Pressure Tested (HPT). These processes ensure a high quality product that will give you a long service life. The gas key has been properly staked to ensure that it is able to handle the dramatic forces involved in the firing cycle.
The bolt included with the bolt carrier group is properly sized for .223/5.56x45mm ammunition.