Details
Aegis with SBA3 Brace .300 BLK AR-15 Pistol Full Build Kit
The Aegis with SBA3 Brace is a complete .300 Blackout AR-15 pistol build kit designed for shooters who want a compact, powerful platform without the NFA paperwork. This full build kit includes everything except the lower receiver, featuring a 6-inch barrel with a 1:7 twist rate optimized for .300 BLK subsonic and supersonic ammunition. The 7075 T6 aluminum upper receiver is anodized for durability, paired with a nitride-finished bolt carrier group and an M-LOK freefloat handguard that keeps the barrel free from pressure points for consistent accuracy.
Key Features
- 6-inch .300 Blackout barrel with 1:7 twist rate and 5/8x24 thread pitch for suppressor compatibility
- 7075 T6 aluminum upper receiver with anodized finish and M4 feed ramps
- Nitride-finished 9310 alloy steel bolt carrier group for reliable cycling
- M-LOK freefloat handguard in aircraft-grade aluminum for modular accessory mounting
- SBA3 stabilizing brace for improved control and accuracy
- Mil-spec AR-15 M4 charging handle
- Pistol-length gas system optimized for the compact platform
Spearfisher's Revenge Platform
This kit carries the Spearfisher's Revenge designation, reflecting its design intent as a compact, hard-hitting .300 Blackout pistol. The 6-inch barrel paired with the 1:7 twist rate excels with both subsonic and supersonic .300 BLK loads, making it adaptable for suppressed or unsuppressed shooting. The freefloat handguard eliminates barrel harmonics issues that can arise with shorter platforms, maintaining shot consistency across different ammunition types.
SBA3 Brace Integration
The SBA3 stabilizing brace transforms this pistol kit into a controllable platform. Unlike traditional pistol grips, the brace wraps around your arm to manage recoil and improve sight picture. The brace design remains fully compliant as a stabilizing device, allowing you to build without the complexities of NFA registration. The SBA3 is adjustable for fit and comfort across different shooter hand sizes.
Suppressor Ready Design
The 5/8x24 thread pitch on the 6-inch barrel makes this platform ideal for .300 BLK suppressor mounting. The pistol-length gas system works well with both suppressed and unsuppressed configurations. Whether you run subsonic ammunition with a suppressor or standard supersonic loads, the 1:7 twist rate stabilizes both effectively. This is a purpose-built .300 BLK platform, not a 5.56 conversion.
Lower receiver not included. BCG and charging handle are included with this full build kit. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.
