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Repair kit for Mk57 rotating bolt carrier group in 5.7x28mm. Includes replacement parts commonly used for servicing Mk57 BCGs, including bolts, firing pins, retainers, keys, screws, cam pins, extractors, ejectors, ejector springs, and bolt springs.
Specifications
- Manufacturer:
- Cmmg
- Category:
- bolt-carrier-group
- Platforms:
- AR-15
- UPC:
- 816422029174
- MPN:
- 57AFF82
- Required Component:
- Yes
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$153.99
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