Daniel Defense MK12 Rifle

Description

The Daniel Defense MK12 is an AR rifle configured with a semi-automatic action, an 18-inch barrel, and a rifle-length direct impingement gas system. Its 12-inch DDM4 rail provides a mounting surface for compatible equipment. This configuration is supplied without sights.

Key Specifications

• The rifle uses a semi-automatic action for a familiar operating system.
• The barrel measures 18 inches and is identified with the MK12 profile.
• The gas system runs at rifle length with direct impingement operation.
• The upper and lower receivers are made from 7075-T6 aluminum.
• The handguard is a 12-inch DDM4 rail with Picatinny mounting.
• The barrel uses a 1:7 twist rate.
• The muzzle uses a 1/2×28 thread pattern for compatible muzzle devices.
• The rifle is supplied with no sights, leaving sight selection to the owner.
• The stock provides 6-position adjustment with SoftTouch overmolding.

We point this configuration toward shooters who want an AR rifle built around an extended barrel and rifle-length gas system. The aluminum receiver construction, free-floating rail, and adjustable stock reflect a deliberate focus on configurable setup and handling. The included GRIP-N-RIP charging handle and Daniel Defense furniture add specific equipment details without limiting the accessory choices available on the rail. The Daniel Defense MK12 remains the focus.