This is the CMMG Dissent Br4 (55A830B-AB) in 5.56x45mm NATO, finished in Armor Black Cerakote. It has a 16.1" 4140CM nitride barrel in CMMG's EMPIRE (medium taper) profile, non-threaded with a recessed crown and a 1:7 twist, with a mid-length gas port and an adjustable .750" gas block. It runs on CMMG's bufferless Compact Action. The Dissent upper is 7075-T6 aluminum and the Br4 lower is billet 7075-T6; the lower accepts standard 5.56 AR magazines. It has a fixed Magpul SGA stock (Remington 870 pattern), a 13.5" CMMG M-LOK handguard, a forward non-reciprocating left-side charging handle, a reversible cross-bolt safety, an integrated trigger guard, and CMMG's ZEROED single-stage trigger. It ships with two Magpul 10-round PMAG magazines. CMMG lists 36.7" overall length and 7.7 lb.
In stock at Custom Defense Solutions USA in Littleton, MA.
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