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IA Iron River Armory

CMMG Dissent BR4 5.56 NATO 16.10-inch Threaded Barrel

SKUTSW|168187 Conditionnew CategorySemi Auto Rifles
$1873.51
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About this product

The CMMG Dissent BR4 is a modern 5.56 NATO carbine designed for reliable performance in range, training, and field use. It is built around a 16.10-inch black nitride threaded barrel and a coyote tan Cerakote aluminum receiver with an integral Picatinny rail. The rifle includes a Magpul SGA black synthetic stock and ships with two Magpul 10-round PMAGs, providing compliant capacity where required. Controls and components are specified for straightforward operation and maintenance.

Key Specifications

  • Chambering is .223 Rem / 5.56 NATO.
  • The barrel length is 16.10-inch with a black nitride finish and threaded muzzle.
  • Standard capacity is 10 + 1.
  • The barrel is described as threaded.
  • The muzzle device is a CMMG Zeroed Muzzle Brake.
  • The trigger is a Zeroed Single Stage design.
  • The rate of twist is 1:7.
  • The stock is a Magpul SGA black synthetic stock.
  • The overall length measures 38.10-inch.
  • The unloaded weight is listed as 8 lbs.

Thoughtfully specified for shooters who value dependable, no-nonsense performance, the Dissent BR4 combines a serviceable barrel length and quality components in a durable package. Its configuration makes it suitable for range work, training, and general field use while maintaining straightforward ergonomics and accessory compatibility.

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Specs at a glance

CMMG Dissent BR4 5.56 NATO … SPECS AT A GLANCE 8 lbs WEIGHT
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by Travis Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$1873.51