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 full hard chrome exterior coating and is properly made, ready to run reliably in your rifle. These may have small blemishes, machine marks, or coating defects that do not affect function.
Mil Spec 8620 Carrier, Full Chrome
- 8620 Quality Steel
- Full Auto M-16 cut
Mil-Spec Bolt , Full Chrome
- Carpenter 158 Steel (c158)
- Shot Peened
- High Pressure Tested (HPT)
- Magnetic Particle Inspected (MPI)
- Sprinco Extractor and ejector springs, with sprinco insert
Mil Spec Extractor – Phosphate
- Phosphate extractor has more friction when gripping the case rim, allowing for more reliable extraction.
- 4140 Steel
- Extractor Spring by Sprinco
- Black Extractor Insert
Mil Spec Gas Key, Full Chrome
- 4130 Steel
- Grade 8 Hardware
- OCKS gas key screws
- Properly Staked
4140 Steel Cam pin, chrome finish
Firing Pin, retaining pin
Weight: 11.6oz
-300x300.jpg "Left Hand Nickel Boron BCG M16 / Ar15 Bolt Carrier Group, photo")
(1)-300x300.jpg "Titanium Nitride TiN M16 / Ar15 MPI Bolt Carrier Group 5.56/223, photo")
