Home / Accessory-Parts / B&T USW-G20 CONVERSION KIT G20/21 View cart “Wilson Combat BUSHING WRENCH 1911 FS/CPCT BL” has been added to your cart. Sale! B&T USW-G20 CONVERSION KIT G20/21$57500 $45707 Out of stock SKU: BT-430220 Category: Accessory-Parts Product ID: 26294 Description Description Compatible with Glock 20/21Aimpoint ACRO InterfacePicatinny Rail with Screw Related products Wilson Combat GAS TUBE PISTOL LENGTH 6.6″ $1350 ProMag PROMAG VERTICAL FORE GRIP BLK $1699 Trijicon LENS PEN CLEANER/BRUSH $1800 Christensen Arms THREAD PROTECTOR 5/8-24 BRNZ $3999