Description
****In-Stock ETA Expected June 14th****
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.
(All-Chrome with Phosphate Extractor can be found separately here.)
Features:
Nitride, Phosphate-Chrome or All-Chrome M-16 BCG
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)
Mil Spec Extractor
- 4140 Steel
- Extractor Spring
- Black Extractor Insert
- Mil-Spec O-Ring
Mil Spec Gas Key
- 4130 Steel
- Grade 8 Hardware
- Properly Staked
Weight: 11.6oz
Customer Reviews
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Great BCG
I already know how good Microbest BCG's are, which is why I bought it. But the real 5 stars goes to Arftac for great service, communication, and on-time fast shipping. Keep up the good work folks
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Top Tier BCG
Chrome finished BCG. Microbest is a top tier BCG. The chrome finish is easy to clean and strong. Easy install and after a headspace check and a lube, went to the range and put a couple hundred rounds down range with no issues.
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Microbest phosphate
The best bcg period!
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Microbest is as good as milspec phosphate gets
Excellent phosphate bcg for a mk12. Was looking for a BCM when I came across this deal for the OEM maker of BCM. Excellent quality and super quick shipping and communications with ARFtac. Win win. Will buy more when available.
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Microbest bcg
For the price or even higher, phenomenal bcg. Ran it hard this weekend and did great. Shipping is absolutely amazing from Arftac! Plus, a sticker and we all know that’s why we buy parts.
