Dynamics True Mil-Spec Bolt Carrier Group AR15/M4 with the gas key
properly staked, chromed lined interior and full auto rated.
It is made from case hardened steel and then shot peened. It is
Magnetically Particle Tested (MPI) and High Pressure Tested (HPI). CNC
Machined after heat treatment to ensure the evenness of treatment. All
surfaces are then honed to a super smooth surface. The finish has an
advanced low friction nitrite coating to minimize the excessive use of
honing process of our BCG's provide increased life of the gas rings and
allow immediate normal use instead of a break in period.
Shot peening is a cold working process used to produce a compressive residual stress layer and modify mechanical properties of metals.
Carrier fits AR15/M4 compatible style Rifles (i.e.) .223/5.56mm, .308Blkout