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Microbest m16 Phosphate / CL HPT / MPI Bolt Carrier Group BCG, Sprinco, OCKS, oring

Original price was: $179.00.Current price is: $99.00.

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A solid Bolt Carrier Group is a key component of your Ar15. Microbest produces top quality mil-spec BCGs for the military and other quality rifle manufacturers. This 5.56 / 223 BCG features a phosphate exterior coating, chrome lined interior, and is properly made, ready to run reliably in your rifle.

These include the oring on the extractor spring, which can be removed.

Mil Spec 8620 Carrier, Chrome Lined

  • 8620 Quality Steel
  • Full Auto M-16 cut

Mil-Spec Bolt , Phosphate

  • Carpenter 158 Steel (c158)
  • Shot Peened
  • High Pressure Tested (HPT) 
  • Magnetic Particle Inspected (MPI)

Mil Spec Extractor – Phosphate

  • Phosphate extractor has more friction when gripping the case rim, allowing for more reliable extraction.
  • 4140 Steel
  • Extractor/Ejector Spring by Sprinco
  • Sprinco Extractor Insert and Oring

Mil Spec Gas Key, Phosphate

  • 4130 Steel
  • Grade 8 Hardware
  • OCKS Screws
  • Properly Staked

4140 Steel Cam pin,
Firing Pin, retaining pin

Weight: 11.6oz

Additional information

Weight .75 lbs
Dimensions 8 × 4 × 4 in
Caliber

5.56/.223, 300 BLK

Customer Reviews

Based on 2 reviews
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F
Fred L. (Albuquerque, NM, US)
Great bcg

Very very gas efficient if u want a bcg that will always do its job without the expensive branding microbest is the way to go and if u wanna deal with a company that always awnsers ur questions and even texts u back quickly mid state firearms is a great place to shop

A
Anonymous
I have not gotten it

I am doing a retro build, that’s why I bought a phosphate carrier. I received one that was nickel boron coated. I had it sent back, but have not seen the replacement.

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