Yankee Hill Machine has recently released their latest offering in the AR15 platform with their new 5.56 chambered MR7 Series AR-15 carbine complete upper receivers.
Yankee Hill Machine states “This top end is chambered in 5.56mm and comes in either 1:7 or 1:9 twist. This top end incorporates our MR7 Mid-Length M-Lok handguard that bridges the gap between the upper receiver and hand guard for a seamless look It also is “T” marked for position on the top rail.”
-Forged 7075-T6 Flat Top Upper Receiver with M4 Feed Ramps and “T” marked
-16″ 4140 Steel Barrel, Heat Treated to RC 25-32 Threaded to take our Popular Muzzle Accessories
-YHM Phantom Flash Hider (YHM-28A)
-YHM Mid-Length M-Lok Handguard (YHM-5325)
-YHM Low Profile Gas Block (YHM-9383)
-Total Weight: 4.1 lbs.