B&T Direct Thread HUB Adapter – 1/2-28 – Lightweight – SD-145582
The B&T Direct Thread HUB Adapter (SD-145582) is a precision-engineered suppressor interface designed to bridge the gap between B&T's legendary Swiss quality and the industry-standard "HUB" (1.375x24 TPI) mounting system. In 2026, as more suppressors shift toward universal mounting threads, this adapter allows you to convert any HUB-compatible silencer—such as the B&T Rotex or MARS Mainline series—into a dedicated direct thread system. This specific model is threaded for 1/2-28, the standard pitch for most 5.56/.223 AR-15s and 9mm tactical platforms, providing the shortest and lightest possible connection between your muzzle and your can.
Crafted from high-strength alloy steel and finished in a non-reflective matte black nitride, the SD-145582 is designed for hard-use environments. The "Lightweight" designation reflects its streamlined profile, which eliminates the unnecessary bulk and weight of quick-detach (QD) systems, making it an ideal choice for precision rifles or "recce" builds where every ounce counts. Its low-profile design also reduces the overall length of your suppressed setup, improving maneuverability without sacrificing gas seal integrity. With B&T’s uncompromising manufacturing tolerances, this adapter ensures perfect concentricity to the bore, drastically reducing the risk of baffle strikes compared to inferior universal mounts.
Includes: (1) B&T 1/2-28 Direct Thread HUB Adapter (SD-145582).
Key Features
- HUB Standard Compatibility: Features the 1.375x24 TPI external thread pattern, fitting a vast array of B&T and aftermarket HUB-compatible suppressors.
- 1/2-28 Direct Thread: Provides a secure, rock-solid interface for the most common rifle and pistol thread patterns in North America.
- Lightweight Low-Profile Design: Significantly lighter than QD mounting solutions, helping to maintain the balance of your firearm.
- Precision Machined Steel: Built to withstand the extreme heat and pressures of high-volume suppressed fire without loosening or deforming.
- Matte Black Nitride Finish: Offers superior corrosion resistance and a tactical, non-reflective surface that blends with modern muzzle devices.
- Swiss Engineering: Designed by B&T to ensure perfect alignment, reducing the potential for point-of-impact shift.
Product Specifications
- Brand: B&T Firearms (B&T USA)
- Model: Direct Thread HUB Adapter
- Thread Pitch: 1/2-28 (Internal) / 1.375x24 (External HUB)
- Material: Alloy Steel
- Finish: Black Nitride
- Compatibility: HUB-Compatible Suppressors (1.375x24)
- Weight: 0.10 lbs
- Country of Origin: Switzerland / USA
- MPN: SD-145582
- UPC: 840225716474 / 840225718591
