CMMG Resolute MK4 .338 ARC 10+1 16.10″ Threaded

About this product

Made to combine the AR15 platform with the performance of a large-bore cartridge, the CMMG Resolute MK4 in .338 ARC provides adaptable supersonic and subsonic capability with less gas-system tuning when moving between suppressed and unsuppressed setups. This configuration pairs a 16.10″ threaded barrel and linear compensator with a Tungsten Cerakote aluminum receiver and an M-LOK handguard for modular accessory mounting. Ergonomics are addressed with the Tungsten polymer CMMG Ripstock and CMMG Zeroed grip and safety for familiar, controllable operation.

Key Specifications

• The caliber is .338 ARC.
• The capacity is 10 + 1.
• The barrel length is 16.10″.
• The barrel is described as Threaded.
• The muzzle is fitted with a Linear Compensator.
• The overall length is 37.30″.
• The receiver material is Aluminum.
• The safety is a CMMG Zeroed 60/90 Degree.
• The rate of twist is 1:8″.
• The weight is 6.20 lbs.

The Resolute MK4 is built for shooters who want a compact AR-style platform chambered in .338 ARC for extended-range and big-game effectiveness without excessive system complexity. Its threaded 16.10″ barrel, durable Tungsten Cerakote receiver finish, and M-LOK-compatible handguard make it a practical choice for field use or precision work where modularity and reliable function matter. Rugged ergonomics and CMMG-specific controls deliver a familiar interface for experienced operators seeking a purpose-driven large-bore AR rifle.