Product Description
Mil-Spec Bolt Carrier Group Assembly is made in the U.S.A. Precision machined 9310 heat treated steel with a corrosion resistant black nitride finish. Full-auto capacity, shot peened MPI Bolt, 8620 gas carrier & gas key fastened with hardened Grade 8 fastners.
- Length: 7.5"
- Weight: 11.7 oz.
- Nitride Finish
- USA Made
- Precision Machined
- 9310 Material
- Heat Treated Steel
- Mil-Spec
- Shot Peened MPI Bolt
- 8620 Gas Key
- Black Nitride Finish
- M16 Style/Full Auto
- .223/5.56 Chamber
- Compatible with: Most AR-15/M16/M4 style rifles
Product Videos
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Product Reviews
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Great BCG,
MCS Has the BEST parts needed for your build. I bought this basic BCG for a Anderson AM15 upper and the Fitment, Finish function was flawless. I ran 250 rounds from 55 GRAIN steel cased to 75 Grain Sierra match king and Xm 193. All shot perfect. I check gas rings and gas key bolts everything is solid. I did mark the cam pin with a punch to keep cam pin wear on one side / one way. Battle ready BCG
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Works great in my 300 BO upper
Fit perfectly, shot 50 rounds of 300 BO and not a glitch or hitch. Great value, fast shipping!
