Rise Armament AR-15 Bolt Carrier Group 223 Remington/5.56 NATO Black Nitride

The Rise Armament Bolt Carrier Group is a replacement BCG for the AR-15 platform, designed for chambering and cycling 223 Remington and 5.56x45mm NATO ammunition. It is intended for owners who need a replacement or upgrade component for a compatible rifle.

The assembly is made from 4140 steel and finished in black nitride, which gives it a black color. The retailer text states that each unit is individually inspected and MPI tested. The raw description also refers to tool steel construction, which differs from the 4140 steel listed in the structured specifications, so the listed 4140 steel is used here.

The group is listed as compatible with AR-15 rifles chambered in .223/5.56. Confirm fitment against your specific upper and lower receiver before installation.

• Brand: RISE Armament
• Platform: AR-15
• Calibers: 223 Remington, 5.56x45mm NATO
• Material: 4140 Steel
• Finish: Black Nitride
• Color: Black
• Inspection: Individually MPI tested