Davidson Defense Aegis w/BTR Brace 14.5-inch Carbine-Gas 1:7 556 AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Aegis w/BTR Brace 14.5-inch Carbine-Gas 1:7 5.56 AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

This complete AR-15 pistol build kit includes everything except the lower receiver, featuring a 14.5-inch 4150 CrMoV barrel with 1:7 twist, free-float M-Lok handguard, and a Magpul BTR pistol brace. The upper assembly combines a stripped upper receiver with a carbine-length gas system and adjustable gas block, while the kit includes a complete bolt carrier group, charging handle, lower parts kit, buffer tube, buffer, recoil spring, castle nut, and end plate for a fully functional pistol configuration.

Key Features

• 14.5-inch 4150 CrMoV barrel with 1:7 twist rate and phosphate finish
• Free-float M-Lok handguard for improved accuracy and accessory mounting
• Low-profile adjustable gas block for tuning and reliability
• Magpul BTR pistol brace with standard mil-spec buffer tube compatibility
• Complete bolt carrier group made in the USA with 9310 alloy steel construction
• Delta Team Tactical Plan B Bartizan muzzle brake with modular suppressor mounting
• Mil-spec components throughout including forward assist and ejection port door
• Lower receiver not included

Perfect For

• Builders seeking a complete pistol platform without the serialized lower receiver
• Shooters wanting a compact, maneuverable AR-15 pistol configuration
• Those prioritizing free-float accuracy with M-Lok modularity
• Enthusiasts building a 5.56 NATO pistol with quality USA-made components

Upper Assembly Design

This kit features a stripped 7075-T6 aluminum upper receiver with M4 feed ramps and hard anodize finish. The 14.5-inch barrel is chambered in 5.56x45mm NATO with a 1:7 twist rate suitable for a wide range of ammunition weights. The free-float M-Lok handguard isolates the barrel from the upper receiver, improving shot-to-shot consistency and allowing flexible accessory mounting without affecting accuracy.

Magpul BTR Brace Configuration

The. Magpul BTR pistol brace mounts to a mil-spec heavy-duty buffer tube, providing a stabilizing platform for pistol-caliber shooting. The brace is configured for standard AR-15 buffer tube compatibility and allows for adjustable positioning. This kit ships with the brace installed on the buffer tube, ready for lower receiver assembly.

Plan B Muzzle Device Ecosystem

The included. Delta. Team. Tactical. Plan B Bartizon muzzle brake features modular suppressor mounting compatibility. This design allows future integration into suppressor ecosystems while providing immediate muzzle control and blast direction. The 17-4 stainless construction with black nitride finish delivers durability and corrosion resistance in a compact package.

Complete Build System

The lower parts kit includes all trigger components, hammer, disconnector, selector, magazine catch, and bolt catch assemblies needed to complete a stripped lower receiver. The carbine-length recoil spring and 3-ounce buffer work together with the adjustable gas block to cycle reliably. All components are mil-spec quality and designed for standard AR-15 lower receiver compatibility.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Lower receiver not included. Verify barrel and caliber compatibility before assembly.