Davidson Defense Stormborn 7.5" 5.56 NATO AR-15 Pistol Build Kit, M-Lok Handguard, 1:7, w/ SBA3 Brace

Stormborn 7.5" 5.56 NATO AR-15 Pistol Build Kit, M-Lok Handguard, 1:7, w/ SBA3 Brace

The Stormborn w/SBA3 Brace is a complete 5.56 NATO pistol build kit designed for shooters who want a compact, maneuverable platform with genuine modularity. This kit pairs a 7.5-inch barrel with a gas-operated system, a freefloat M-Lok handguard, and an SB Tactical SBA3 adjustable brace. The result is a versatile pistol configuration that handles tight spaces while maintaining reliable cycling and customization options.

Key Features

• 7.5-inch 4150 Chrome Moly Vanadium barrel with 1:7 twist rate and phosphate finish
• Panhead billet upper receiver with .458 ejection port door and anodized finish
• Freefloat M-Lok handguard in 6061-T6 aluminum for accessory mounting and improved accuracy
• Complete 5.56/.223 bolt carrier group in 9310 alloy steel with nitride finish, made in the USA
• SB Tactical SBA3 adjustable polymer brace in black
• Micro low-profile gas block sized for 0.750 O.D. barrels
• AR-15 M4 mil-spec charging handle
• GI birdcage flash hider with 1/2x28 thread pitch

Perfect For

• Shooters building a compact 5.56 NATO pistol platform
• Owners seeking a maneuverable configuration for home defense or training
• Builders who want a complete kit with quality components and minimal additional purchases
• Shooters who need M-Lok compatibility for tactical accessories and optics mounts

Freefloat Handguard Design

The freefloat M-Lok handguard isolates the barrel from mounting pressure, which improves consistency and accuracy by allowing the barrel to vibrate naturally without external interference. This design also gives you genuine modularity, letting you attach lights, lasers, grips, and other accessories anywhere along the rail system. The 6061-T6 aluminum construction keeps weight down while maintaining rigidity.

Compact Barrel and Gas System

The 7.5-inch barrel with pistol-length gas system is engineered for short-range performance and maneuverability in confined spaces. The 1:7 twist rate stabilizes a wide range of 5.56 NATO projectiles, from lightweight varmint rounds to heavier defensive loads. The micro low-profile gas block keeps the top of the barrel clean and unobstructed, leaving maximum rail real estate for your optics and accessories.

Complete Component Package

This full build kit includes the bolt carrier group, charging handle, buffer tube, buffer, recoil spring, castle nut, and end plate. The SBA3 brace provides a comfortable, adjustable interface for wrist support and control. Lower receiver not included.

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