CMMG
Overview
The CMMG Parts KIT Bolt Carrier Maintenance MK57 5.7x28mm is a bolt carrier group. Compare prices from multiple merchants and find the best deal.
Specifications
CMMG Parts KIT Bolt Carrier Maintenance MK57 5.7x28mm
Price and stock
The CMMG Parts KIT Bolt Carrier Maintenance MK57 5.7x28mm was hard to find in September 2026, in stock on only 7 of the 12 days we checked, and today only CMMG has it in stock. The best price crept up from $34.95 to $45.99 over September 2026. Buying today, the lowest price is $34.95 at CMMG, which matches the best price we saw in September.
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