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CMMG
Overview
The CMMG Bolt Carrier Group RDB DISSENT Mk4 is designed specifically for the 5.7x28mm caliber, featuring a black finish that provides a sleek look while ensuring durability. This BCG is engineered to work seamlessly within your DISSENT platform, optimizing the cycling and overall reliability of your firearm. It's a popular choice for builds focused on compact configurations and versatility in different shooting scenarios.
Specifications
CMMG Bolt Carrier Group RDB DISSENT MK4 5.7x28mm Black
September 2026 on GunPartPicker
CMMG Bolt Carrier Group RDB DISSENT MK4 5.7x28mm Black ranked #108 of the 217 bolt carrier groups builders added on GunPartPicker in September 2026. Builders on GunPartPicker first added it to a build in July 2026.
It was in stock most days in September 2026, and today only CMMG has it in stock. The best price drifted down from $324.95 to $299.99 over September 2026 without a real sale. Buying today, the lowest price is $324.95 at CMMG, above September's low of $299.99, so a better deal may come back.
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