The Ultimate Hard-Use 5.56 Bolt Carrier Group:
These aren’t designed to be pretty. They’re not meant to compete with the gorgeous museum-quality $200+ units that other well-respected manufacturers are putting out. But this is not just another component; built to exceed military specifications, the Microbest bolt carrier group is designed to be the hard-use always-performing heart of your AR-15. It just happens to look pretty darn good.
**These are all-chrome except for the phosphate Gas key and extractor**
Features:
All-Chrome M-16 BCG, Phosphate Gas Key and Extractor
Mil-Spec Carrier
- 8620 Tool Steel
- Full Auto M-16 cut
Mil-Spec Bolt
- C158 Steel
- Shot Peened
- High Pressure Tested (HPT)
- Magnetic Particle Inspected (MPI)
- Chrome Silicon Ejector Spring by Sprinco
Mil-Spec Extractor – Phosphate
- 4140 Steel
- Chrome Silicon Extractor Spring by Sprinco
- Black Extractor Insert
Mil-spec Gas Key – Phosphate
- 4130 Steel
- Optimized Carrier Key Screws (OCKS) provided by Michiguns
- Properly Staked
- Mil-Spec Opening Verified and Optimum Alignment Checked
Weight: 11.06 oz
Made in the USA
