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16.1 inch barrel in 5.7x28mm paired with a bolt carrier group. Fits AR rifles. Radial Delayed Blowback bolt system. Kit designed to be assembled into a Mk4 mil-spec AR-15 upper and works with either a CMMG Mk57 lower receiver or Mk4/AR15 mil-spec lower receiver when using CMMG 5.7 AR magazines.
Specifications
- Manufacturer:
- Cmmg
- Category:
- barrel
- Platforms:
- AR-15
- Weight:
- 16 oz (1.00 lbs)
- Length:
- 16.0" - 16.1"
- UPC:
- 810097502413
- MPN:
- 57D0476
- Required Component:
- Yes
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$409.99
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