The LanTac 556 MilSpec+ BCG is a drop-in replacement bolt carrier group for AR-15 and M16 pattern rifles chambered in 5.56 NATO/.223 Remington.
- Part Type: Bolt Carrier Group
- Compatible Firearms: AR-15, M16 (5.56 NATO/.223 Remington)
- Material: 8620 Steel Carrier, 9310 Steel Bolt
- Finish: Black Nitride
- Installation: Drop-In
- Includes: Complete Bolt Carrier Group (carrier, bolt, cam pin, firing pin, retaining pin)
