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Davidson Defense Aegis 7.5" Stainless 5.56 NATO AR-15 Pistol Build Kit, M-Lok, 1:7, w/ SBA5 Brace

Part Number: PI-PK-556-63704-SBA5
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Details

Aegis 7.5" Stainless 5.56 NATO AR-15 Pistol Build Kit, M-Lok, 1:7, w/ SBA5 Brace

This is a complete pistol build kit designed for shooters who want a compact 5.56 NATO platform with genuine stainless steel construction and modern ergonomics. The Aegis combines a 7.5-inch stainless barrel with a free-float M-Lok handguard, SBA5 stabilizing brace, and all components needed to assemble a functional upper and lower receiver except the serialized lower receiver itself.

Key Features

  • 416R Stainless Steel barrel with 1:7 twist rate for reliable 5.56 NATO performance
  • Free-float M-Lok handguard in aircraft-grade aluminum for accessory mounting
  • SB Tactical SBA5 pistol stabilizing brace in black nylon reinforced polymer
  • 7075-T6 aluminum upper receiver with anodized finish
  • Nitride-finished 9310 alloy steel bolt carrier group
  • Micro low-profile gas block sized for the 0.75-inch barrel
  • AR-15 M4 charging handle, mil-spec quality
  • Complete buffer tube assembly with standard 3-ounce carbine buffer
  • AR-15 carbine recoil spring included
  • GI birdcage flash hider with 1/2x28 threads

Perfect For

  • Shooters building a compact 5.56 NATO platform for home defense or training
  • Builders who want stainless steel corrosion resistance in a short-barreled configuration
  • Pistol shooters transitioning to AR-pattern firearms
  • Those seeking a complete build kit that eliminates compatibility guesswork

Compact Stainless Performance

The 7.5-inch barrel length combined with stainless steel construction creates a compact, durable platform. The 1:7 twist rate stabilizes standard and heavier 5.56 NATO ammunition reliably. The pistol-length gas system cycles cleanly with this barrel length while keeping the overall profile manageable for close-quarters environments.

Free-Float Handguard and Accessory Integration

The free-float M-Lok aluminum handguard provides consistent barrel clearance for accuracy and supports modern tactical accessory mounting without tools. M-Lok slots run the full length of the handguard, allowing you to position lights, vertical grips, or other gear exactly where you need them.

SBA5 Stabilizing Brace Configuration

This kit ships with the SB Tactical SBA5 brace, a nylon reinforced polymer design that attaches to the buffer tube. The brace provides a stable platform for one-handed or two-handed control. The SBA5 is adjustable and removable, allowing you to customize fit and configuration based on your shooting style.

Quality Materials and Finish

The upper receiver uses 7075-T6 aluminum with anodized finish for durability and corrosion resistance. The bolt carrier is 9310 alloy steel with nitride finish, which resists wear and corrosion during extended shooting. The stainless barrel resists rust and corrosion in harsh environments or extended storage without frequent maintenance.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Verify all federal and state regulations regarding pistol braces and short-barreled rifle configurations before assembly and use.

Specifications

Caliber: 5.56x45mm NATO

Barrel Length: 7.5 inches

Barrel Material: 416R Stainless Steel

Barrel Finish: Stainless

Barrel Profile: Government

Barrel Twist Rate: 1:7

Barrel Thread Pitch: 1/2x28

Barrel Gas System Length: Pistol

Gas Block Size: 0.75 inches

Gas Block Name: Micro Low-Profile Gas Block for .750 O.D Barrel Steel

Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider

Muzzle Thread Pitch: 1/2x28

Upper Receiver Material: 7075-T6 Aluminum

Upper Receiver Finish: Anodized

Bolt Carrier Material: 9310 Alloy Steel

Bolt Carrier Finish: Nitride

Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality

Handguard Material: Aircraft-Grade Aluminum

Handguard Color: Black

Handguard Style: Free Float

Pistol Brace Information: SB Tactical SBA5 Pistol Stabilizing Brace

Pistol Brace Material: Nylon Reinforced Polymer

Pistol Brace Color: Black

Buffer Tube Kit: Heavy-Duty AR-15 6-Position Buffer Tube

Buffer Weight: Standard Carbine Recoil Buffer - 3 oz

Recoil Spring: AR-15 Carbine Recoil Spring

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