Davidson Defense Aphelion w/Magpul BTR Brace 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Aphelion 7.5 Inch Pistol Gas 5.56 NATO AR 15 Full Build Kit with Billet Upper and Magpul BTR Brace

The Aphelion 7.5 inch full build kit delivers a compact 5.56 NATO setup built around a Bear Creek Arsenal Irithyll contour barrel with 1:7 twist and a Black Diamond Series slick side billet upper receiver. The 7 inch freefloat M Lok handguard keeps weight down while providing modular mounting surfaces. This kit includes the upper assembly, bolt carrier group, charging handle, buffer system, lower parts kit, and Magpul BTR stabilizing brace.

Key Features

• Bear Creek Arsenal Irithyll 7.5 inch contour barrel, 4150 Chrome Moly Vanadium steel, phosphate finish, 1:7 twist, 5.56 NATO chambered
• Black Diamond Series slick side billet upper receiver, 6061 T6 aluminum, Type III hard coat anodized
• 7 inch freefloat M Lok handguard, aluminum construction, black finish
• Micro low profile gas block, 0.75 diameter, steel construction
• Pistol length gas tube optimized for 7.5 inch barrel
• AR 15 bolt carrier group, 9310 alloy steel, nitride finish
• Mil spec charging handle, aluminum with anodized finish
• Heavy duty 6 position buffer tube, 3 oz buffer weight, aluminum construction, black
• Lower parts kit included
• Magpul BTR stabilizing brace, polymer construction, black, compatible with standard mil spec buffer tube
• A2 birdcage flash hider, 1/2x28 thread pitch, manganese phosphate finish
• 5.56 NATO caliber, AR-15 platform

Perfect For

• Compact build projects focused on reduced overall length
• Shooters seeking Magpul BTR brace functionality
• Builders preferring slick side billet upper aesthetic
• High velocity applications in confined platforms

Black Diamond Series Billet Upper Receiver

The Black Diamond Series slick side billet upper receiver is machined from 6061 T6 aluminum with Type III hard coat anodizing. The slick side profile eliminates the forward assist and brass deflector, creating a clean, streamlined appearance. Billet construction allows for tighter machining tolerances compared to forged receivers. Type III hard coat anodizing provides enhanced surface hardness and wear resistance.

Compact Platform Configuration

The 7.5 inch barrel with pistol length gas system creates a short, maneuverable setup. The 1:7 twist stabilizes heavier projectiles effectively at close to moderate range. The contour profile balances rigidity and weight in a compact package. Micro low profile gas block keeps the sight plane clean under the handguard.

Magpul BTR Stabilizing Brace

The Magpul BTR stabilizing brace provides Magpul quality construction and design in black polymer. Compatible with standard mil spec buffer tubes for straightforward installation. This brace option comes included with the kit, offering a configuration option for compact pistol builds with Magpul ergonomics and proven reliability.

Premium Bolt Carrier Group

The bolt carrier group features 9310 alloy steel construction with nitride finish. This material provides enhanced wear resistance and corrosion protection in a high pressure platform. The nitride treatment penetrates the steel surface rather than coating it, maintaining dimensional tolerances while adding durability.

Freefloat M Lok Handguard System

The 7 inch freefloat M Lok handguard extends nearly to the muzzle device, maximizing usable mounting length without adding bulk. M Lok slots allow modular accessory attachment while maintaining a slim profile. Aluminum construction keeps weight manageable on a compact platform.

Full Build Kit Components

This kit includes the upper assembly with barrel and handguard, bolt carrier group, charging handle, buffer tube, buffer, recoil spring, castle nut, end plate, lower parts kit, and Magpul BTR stabilizing brace. Lower receiver not included.

Follow safe handling and manufacturer instructions. Lower receiver not included. Ensure compliance with all applicable laws.