- 8620 Steel Bolt Carrier
- Heat Treated For Heavy Duty use
- 1 Year Warranty
- QPQ- Salt Bath Nitride Finish
- USA Made
- Grade 8 Screws to Mil-spec
- Weight: 8.6 Oz
- 9310 Bolt MPI (Magnetic Parcticle Inspected)
- Hydraulically Staked CL Key
- Compatible With Dust Covers
- Skeletonized Low Mass Design
- Smooth Finish To Reduce Friction
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