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Welcome AIM's new Light Weight AR 5.56/.223/.300 BLACKOUT complete Nitride Bolt Carrier Groups. AIM is having these bolts manufactured to their exacting standards. These BCGs are inspected to the highest of standards, to insure a high quality product.
- Complete AR15 Lightweight Nitride 5.56 bolt carrier group
- Only 8.5 ounces in weight!
- Almost 28% in weight savings over AIM's standard NIB BCG
- 8620 AR15 carrier and gas key
- Properly staked Investment cast gas key hardened to USGI specifications
- Gas key is fastened with Hardened Grade 8 Fasteners
- Shot peened MPI (Magnetic Particle Inspected) 9310 Bolt
- Extractor insert installed
- Made in USA