E-arm
New Member
AR15 Toolcraft Black Nitride BCG is a M16 Full Auto BCG, manufactured using a 158 Carpenter steel bolt, and a 8620 steel carrier.
Carrier Specifications
Material: 8620 Steel
Type: M16 Full Auto (Preferred for most AR-15 builds)
Gas Key Material: 4130 Steel; Grade 8 Gas Key Screws
Coating: Black Nitride
Lifetime Warranty
MORE INFO: http://www.e-arms.com/toolcraft-ar15-nitride-bolt-carrier-group-5-56-223/
Carrier Specifications
Material: 8620 Steel
Type: M16 Full Auto (Preferred for most AR-15 builds)
Gas Key Material: 4130 Steel; Grade 8 Gas Key Screws
Coating: Black Nitride
Lifetime Warranty
MORE INFO: http://www.e-arms.com/toolcraft-ar15-nitride-bolt-carrier-group-5-56-223/