M16 Extreme Duty Bolt Carrier Group Assembly

The M16 Extreme Defense BCG System comes complete with enhanced H Buffer and Action Spring to ensure the smoothest running action which offers maximum reliability and durability. The Carrier feaures enhanced venting and a patented Cam Path. The Cam Path extends the unlocking and delays the Bolt unlock which eases extraction and reduces the exposure of the shooter to noxious gasses. The Carrier uses a special Gas Key and Buffer which enable longer stroke, and provide the smoothest operation possible. Mfg: Extreme Defense