Home / Accessory-Parts / B&T USW-G20 CONVERSION KIT G20/21 Sale! B&T USW-G20 CONVERSION KIT G20/21$50000 $39661 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 GRIP MOD WCP320 CRRY TAN SFTY $6795 POF USA DICTATOR GAS BLOCK MID 308 # $18100 Sale! Warne SKYLINE PM DELTA CARD HOLDER $8199 $6889 Sale! Christensen Arms DBM BOTTOM METAL SA TACTICAL $26999 $24458