Davidson Defense Aphelion 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit, SBR Ready

Aphelion 7.5 Inch Pistol Gas 5.56 NATO AR 15 Full Build Kit with Billet Upper and M Lok Handguard, SBR Ready

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, and lower parts kit. Ships without a brace, intended for customers selecting their own final setup.

Key Features

• Bear Creek Arsenal Irithyll 7.5 inch contour barrel, 1:7 twist, 5.56 NATO chambered, manganese phosphate finish
• Black Diamond Series slick side billet upper receiver, 6061 T6 aluminum, Type III hard coat anodized
• 7 inch freefloat M Lok handguard, anodized finish, lightweight design
• Micro low profile gas block, 0.75 diameter
• Stainless pistol length gas tube optimized for 7.5 inch barrel
• AR 15 bolt carrier group, 9310 alloy steel, nitride finish
• Mil spec charging handle
• Heavy duty 6 position buffer tube, 3 oz carbine buffer weight
• Lower parts kit included
• A2 birdcage flash hider, 1/2x28 thread pitch
• SBR Ready, ships without a brace

Perfect For

• Compact build projects focused on reduced overall length
• Shooters selecting their own brace or stock configuration
• Builders seeking a 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.

SBR Ready Design Intent

This kit ships without a brace. It is intended for customers who prefer to select their own final setup based on their specific application and compliance requirements. Configuration based, this approach provides flexibility for individual builds.

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.

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.

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, and lower parts kit. Lower receiver not included.

Follow safe handling and manufacturer instructions. Lower receiver not included. Ships without a brace. Do not install a stock unless compliant. Ensure compliance with all applicable laws.