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M & M Outfitters
M & M Outfitters Premium 5.56 Nickel Boron Bolt Carrier Group
Product Code : Not Specified
$164.95
Description
- .223/5.56 NATO
- Nickel Boron finish
- M16 cut
- 9310 steel carrier
- Carpenter 158 steel bolt
- 4140 steel extractor
- MIL-SPEC O-ring
- MIL-SPEC gas rings
- 4140 steel cam pin
- 8740 steel firing pin with hard chrome finish
- Magnetic particle inspected