Davidson Defense Left-Handed Ronin Competition 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit

Left-Handed Ronin Competition 7.5-Inch Pistol-Gas 1-7 5.56 NATO AR-15 Freefloat M-LOK Handguard Pistol Upper Build Kit

This is a left-handed AR-15 upper build kit chambered in 5.56 NATO, built around a Bear Creek Arsenal Irithyll 7.5-inch contour steel barrel with a manganese phosphate finish, a 1-7 twist rate, and a pistol-length gas system. The Black Diamond Series left-handed slick side billet aluminum upper receiver anchors the front end with a left-hand ejection port and a clean slick side exterior that omits the forward assist and dust cover from the receiver body. The pistol-length gas tube and micro low-profile gas block at .750 complete the gas system, and the ACE-20 Series 7-inch freefloat M-LOK handguard covers the compact forend. An A2 GI Birdcage flash hider at 1-2x28 closes out the muzzle end. BCG and charging handle are not included.

Key Features

• 5.56 NATO chambering, Bear Creek Arsenal Irithyll 7.5-inch contour steel barrel, manganese phosphate finish
• 1-7 twist rate, 1-2x28 thread pitch
• Pistol-length gas system with pistol-length gas tube
• Micro low-profile gas block, .750
• Black Diamond Series left-handed slick side billet aluminum upper receiver, no forward assist, no dust cover
• ACE-20 Series 7-inch freefloat M-LOK handguard
• A2 GI Birdcage flash hider, 1-2x28 thread pitch
• Black 1-2-inch crush washer

Perfect For

• Left-handed AR-15 pistol builders sourcing a 5.56 NATO upper assembly without BCG or charging handle
• Shooters adding a left-handed 7.5-inch pistol-gas upper to an existing lower configured for left-hand operation with a left-handed BCG and charging handle on hand
• Left-handed builders who want a Bear Creek Arsenal Irithyll barrel and purpose-built left-hand ejection slick side billet upper with an ACE-20 Series M-LOK handguard in one compact upper kit

Upper Receiver and Barrel

The Black Diamond Series left-handed slick side billet aluminum upper receiver anchors the front end with a left-hand ejection port and a clean slick side exterior profile that omits both the forward assist and dust cover from the receiver body. The Bear Creek Arsenal Irithyll 7.5-inch contour steel barrel brings a manganese phosphate finish and a 1-7 twist rate to the 5.56 NATO chamber, threaded at 1-2x28. The pistol-length gas tube and micro low-profile gas block at .750 run a pistol-length gas system along the 7.5-inch barrel. The ACE-20 Series 7-inch freefloat M-LOK handguard surrounds the barrel and gas system along the compact forend with M-LOK slots along the handguard body for accessory attachment across the full 7-inch length.

Muzzle Device

The A2 GI Birdcage flash hider threads onto the 1-2x28 muzzle end of the barrel. The included black 1-2-inch crush washer seats at the barrel shoulder and completes the muzzle hardware for this kit.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.