Product Features & Specifications
Features:- Bolt made of Carpenter No 158 Steel
- Shot peened bolt
- Bolt Carrier made of 8620 Steel
- Magnetic Particle Inspected and marked "MPI"
- Hard chrome lined gas key, properly staked
- Black extractor insert
- Shrouded firing pin
- Mil-spec o-ring
- 100% Made in the USA
- Midwest Industries Lifetime Warranty
- SKU: MI-BCG
- UPC: 816537018636
