The B&T USW Conversion Kit adapts Glock 40/41 and Glock 20/21 pistols (Gen 3–5 with standard accessory rails) into the USW configuration. The kit enables a folding‑stock setup for improved stability and features compatibility with the Aimpoint ACRO® Micro red dot optic (optic not included). Designed for easy installation on compatible Glock frames, the conversion kit provides a compact, modular option for users seeking a folding stock configuration for their 10mm or .45 ACP pistols. All NFA rules apply.
Key features
- Fits: Glock 40/41/20/21 (Generation 3, 4 and 5) with standard accessory rails
- Folding stock compatible — spring‑loaded folding stock interface (stock included or accessory; confirm with seller)
- Aimpoint ACRO® Micro compatible (ACRO not included)
- Compact, modular design for improved handling and stability
Specifications:
- Calibers: 10mm and .45 ACP
- Length: 11″
- Weight: 1.2 lbs
- Compatibility: Gen3-5 for Glock 40/41 and Glock 20/21
What’s in the box
- B&T USW-G Conversion Kit
- Charging Handle
- Replacement Striker Plate
- Folding Stock
- 1913 Pic Rail
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