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

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

This is a complete left-handed AR-15 upper 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 steel gas block at .750 complete the gas system, and the ACE-20 Series 7-inch freefloat M-LOK handguard with a full-length Picatinny top rail covers the compact forend. An A2 GI Birdcage flash hider at 1-2x28 closes out the muzzle end. A Davidson Defense premium left-handed M16 black nitride bolt carrier group and a Mil-Spec M4 aluminum charging handle complete the upper component set.

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 steel 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, full-length Picatinny top rail
• Davidson Defense premium left-handed M16 black nitride bolt carrier group
• Mil-Spec AR-15 M4 aluminum charging handle
• A2 GI Birdcage flash hider, 1-2x28 thread pitch
• Black 1-2-inch crush washer

Perfect For

• Left-handed AR-15 pistol builders pairing a complete 5.56 NATO upper with an existing lower configured for left-hand operation
• Shooters adding a left-handed 7.5-inch pistol-gas upper to an AR-15 lower they already own
• Left-handed builders who want a Davidson Defense left-handed M16 nitride BCG and charging handle included with a Bear Creek Arsenal Irithyll barrel and ACE-20 Series M-LOK handguard with a full-length Picatinny top rail in one complete compact upper assembly

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 steel 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 a full-length Picatinny top rail running the entire length of the handguard for optics and accessory mounting, and M-LOK slots along the remaining handguard surfaces for additional accessory attachment.

Bolt Carrier Group and Charging Handle

The Davidson Defense premium left-handed M16 black nitride bolt carrier group is a purpose-built left-hand BCG designed to function with the left-handed upper receiver and eject cases from the left side of the build. The Mil-Spec M4 aluminum charging handle pairs with the BCG inside the upper receiver to complete the upper interior. These two components complete the upper component set alongside the upper assembly, barrel, and handguard.

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 upper.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.