The Noveske Leonidas STS 12.5 inch 5.56mm AR-15 barrel provides a precision-engineered foundation for carbine and SBR (Short Barreled Rifle) builds. Designed for consistent performance and long-term durability, this barrel integrates Noveske’s commitment to manufacturing robust, technically precise components for demanding applications.
Key Features
Optimized Gas System
This 12.5-inch barrel features a carbine-length gas system, carefully tuned to ensure reliable cycling and mitigate excessive recoil in a compact platform. The gas port dimensions are precision-machined for optimal gas flow, promoting consistent operation across a range of ammunition types.
Precision Construction
Constructed from high-grade 416R stainless steel, the Leonidas STS barrel is button-rifled with a 1:7 twist rate. This specification effectively stabilizes a wide spectrum of 5.56x45mm NATO projectile weights, including heavier match-grade ammunition. The barrel extension incorporates M4 feed ramps, facilitating reliable feeding and integration with standard AR-15 receivers.
Enhanced Durability
The selection of 416R stainless steel provides inherent corrosion resistance and maintains dimensional stability under operational heat. This material choice, combined with Noveske’s manufacturing processes, contributes to extended service life and sustained accuracy.
Application Versatility
With its 12.5-inch length, this barrel is suitable for compact AR-15 configurations, offering a balance between maneuverability and ballistic performance. It is compatible with standard .750 inch gas blocks and 1/2×28 muzzle devices, allowing for broad customization to meet specific operational requirements.
Technical Specifications
- **Caliber:** 5.56x45mm NATO (compatible with .223 Remington)
- **Length:** 12.5 inches
- **Material:** 416R Stainless Steel
- **Rifling:** Button Rifled, 1:7 Twist Rate
- **Gas System Length:** Carbine
- **Gas Block Diameter:** .750 inch
- **Muzzle Thread:** 1/2×28 TPI (Threads Per Inch)
- **Barrel Extension:** M4 Feed Ramps
- **Finish:** Raw Stainless Steel
