CMMG MK-4

CMMG MK-4

• Used, in very good condition
•  USA-made (in Missouri) AR-15 style rifle
• Aluminum alloy upper and lower
• 16″ barrel
•  A2 muzzle break.
• A3 flat-top with Pic/Weaver rail
• Low-profile gas block with top rail and bayonet lug
• T-6 collapsible shoulder stock
• Polymer hand-guard
• Includes on 30-round polymer magazine