Description
***Cosmetic Blemish*** These are the same spec as our PREMIUM BCGS. They will function properly 100% of the time but may exhibit cosmetic irregularities.
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, our 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 Phosphate Gas Key and Extractor***
-Phosphate Extractor
-Phosphate Gas Key
-Sprinco 5-coil Extractor Spring and Sprinco Ejector Spring
-OCKS Fasteners, Properly Staked
Microbest is one of the finest manufacturers of mil-spec bolt carrier groups for the military and small arms manufacturers. These are individually High Pressure Tested and then undergo a Magnetic Particle Inspection. We recommend degreasing and lubricating before installation. Ships in OEM packaging.
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: 11.6oz
Customer Reviews
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Not Pretty, But gets the job done!
Just got in this Premium Cosmo (BLEM) BCG. The carrier has a dull nickel type look to it as if a layer of chrome plating was missed. A few scratches on the none-ejection side but nothing deeper than the plating. I have the regular premium and side-by-side the regular one has a far "shinier" and deeper chrome finish. It is just prettier. The bolt itself is 100% with no issues on it. For the price this is an amazing value as the BCG will spend it's entire life inside the upper anyways. Great buy!
