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
- Reviews
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- chrome
- Microbest
- gas key
- Sale
- quality
- tight seal
- gas sealing
- Everything
- machine work
US
Microbest Chome BCG
functions smoothly and looks great in my 350 legend rifle.
USFull 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
United Statesgreat bcg
very smooth!
USSolid 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
USAmazing 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!
