Davidson Defense Black Dagger w/SBA5 Brace 7.5-inch AR-15 9MM Pistol Full Build Kit

Black Dagger w/SBA5 Brace 7.5-inch AR-15 9MM Pistol Full Build Kit

This is a complete 9MM AR-15 pistol build kit designed for shooters who want a compact, controllable platform without the paperwork. It includes everything except the lower receiver: a 7.5-inch barrel with a 4150 CrMoV construction, a billet aluminum upper receiver, SBA5 stabilizing brace, bolt carrier group, lower parts kit, buffer system components, and all hardware needed to assemble. The short barrel and pistol brace make this setup ideal for close-quarters use, vehicle storage, or home defense scenarios where a full-size rifle isn't practical.

Key Features

• 7.5-inch 4150 CrMoV barrel with 1:10 twist rate optimized for 9MM
• Vertex Enhanced Pistol Caliber billet aluminum upper receiver with Type III hard coat anodize
• SB Tactical SBA5 stabilizing brace for improved control and accuracy
• 9MM nitride bolt carrier group with 416 stainless steel construction
• 7-inch handguard for ergonomic rail space
• 9MM flash hider A2 bird cage with 1/2x36 thread pitch
• Mil-spec heavy-duty 6-position buffer tube and 5.5 oz buffer
• Lower parts kit, castle nut, and end plate included

Perfect For

• Shooters building a compact 9MM platform for home defense
• Builders looking for a complete kit requiring only a serialized lower receiver
• Those wanting a pistol-caliber AR with a short barrel and stabilizing brace
• Shooters who prefer the ergonomics and modularity of the AR platform in 9MM

Compact 9MM Carbine Platform

The Black Dagger combines a short 7.5-inch barrel with the SBA5 brace to create a highly maneuverable 9MM platform. The HBAR profile barrel maintains velocity and accuracy at close range while the brace provides a stable shooting interface without requiring NFA registration. This configuration delivers the handling characteristics of a modern pistol-caliber carbine in a form factor that works well in tight spaces.

Davidson Defense Quality and Precision

This kit features Davidson Defense components throughout, including the Vertex billet upper receiver machined from 6061-T6 aluminum and finished with Type III hard coat anodize for durability. The Akali barrel uses 4150 CrMoV steel with a phosphate finish and 1:10 twist rate specifically optimized for 9MM ammunition. The 9MM nitride bolt carrier group uses 416 stainless steel for reliability and corrosion resistance. Every component is selected for consistent performance and long-term reliability.

Modular Rail System and Accessory Compatibility

The 7-inch handguard provides ample rail space for mounting optics, lights, or other tactical accessories. The receiver is drilled and tapped for standard Picatinny rail integration, allowing for quick-change optic mounting or backup iron sight installation. The 1/2x36 muzzle thread pitch accommodates a wide range of 9MM suppressors and muzzle devices currently available.

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