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