The Radical Defense MK1 MOD1 DMR 556 is a 16” carbine available in 5.56 NATO. Equipped standard with RD Suppressor KFM Taper Lock Flash Hider, Battle Arms Development RACK® Ambi Charging Handle, B5 Systems Bravo Stock, B5 Grip, Nickel Teflon Two Stage trigger, ambi selector, enhanced trigger guard and optional Griffin Armament M2 Iron Sights.

All of their MK1 MOD1 series carbines utilize our patented threaded straight gas tube and gas block to eliminate gas leakage and help reduce recoil. MK1 M-LOK® handguards are thermal fit to a steel barrel nut with a robust Tombstone lockup resulting in an extremely rigid handguard.

Specifications:

• Barrel Length: 16"
• Barrel Material: 4150 Chromoly
• Barrel Finish: Melonite
• Barrel Thread Pitch: 1/2x28
• Caliber: 5.56 NATO
• Twist Rate: 1:7
• Barrel Extension: M4 feed ramps
• Gas System: Direct Impingement – Intermediate Length
• Gas Block Type: .750” Patented low profile gas block and threaded gas tube
• Muzzle Device: RD KFM, taper lock suppressor mount / Flash Hider
• Sights: Griffin Armament M2 Iron Sights
• Upper Receiver Material: Forged 7075 T6
• Upper Receiver Style: Anti-rotation alignment Tab
• Upper Receiver Finish: Type III Anodizing
• Forward Assist: MIL-STD
• Dust Cover: MIL-STD
• Handguard Type: Free Float MLOK
• Handguard Style: Integrated alignment tab with upper receiver
• Handguard Length: 15"
• Charging Handle: Battle Arms Development RACK Ambi Charging Handle
• Lower Receiver: Forged 7075 T6
• Lower Receiver Finish: Type III Anodizing
• Fire Control Group: Nickel Teflon, 2-Stage Fire Control Group
• Grip: B5 Grip
• Stock: B5 Precision
• Height: 7.5"
• Length: 34.75" Collapsed – 38" Extended
• Weight: 8.27lbs
• Magazines: (2) 30 Round

Features:

• "Tombstone" Steel Handguard Lock-up
• Keyed Upper/ Handguard Anti-rotation
• Patented Threaded Straight Gas Tube and Gas Block