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Microbest C158 HPT/MPI 5.56 Bolt Carrier Group - Chrome
In stock
The Microbest Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a corrosion resistant hard chrome finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws. Made in the U.S.A.
Features:
- .233/5.56 NATO
- Hard chrome finish
- M16 cut
- Aircraft quality 8620 steel carrier
- 4130 steel gas key
- Properly staked grade 8 gas key screws
- Carpenter 158 steel bolt
- 4140 steel extractor
- MIL-SPEC O-ring
- MIL-SPEC gas rings
- 4140 steel cam pin
- 8740 steel firing pin with hard chrome finish
- Magnetic particle inspected
- Proudly made in the U.S.A.
Weight | 15 oz |
---|---|
Bolt Material | Carpenter 158 Steel |
Cartridge Compatibility | .223/5.56 NATO/.300 BLK |
Finish | Chrome |
Carrier Profile | M16 |
High Pressure Tested | Individually HP Tested |
Magnetic Particle Inspected | Magnetic Partical Inspected |
Platform | AR-15 |
Bolt Finish | Chrome |
UPC | 14700 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
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Full chrome, nice machining
Soon to really test this Bcg, will report back if any issues. I changed the ejector for a phosphated one, but otherwise it looks really good. No issues that I have seen, fits nicely. No bad machining marks, at least not anywhere critical. Ejector pin is nice and smooth, springs are strong. Good unit
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Solid choice
Hard chrome versions of these are hard to come by sometimes. Microbest is the OEM supplier for many of the top brands you recognize. C158 bolt,individually HP/MP inspected as they should be. Great price (caught them on sale) Hard to go wrong
Amazing Black Friday deal
Even though I got this on sale during Black Friday, I'd pay full price any day of the week for a bcg of this quality. Nice tight seal, easy to clean, gas key properly staked. Looking forward to replacing all my bcg's with Microbest chrome!
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