Home / Accessory-Parts / B&T USW-G20 CONVERSION KIT G20/21 View cart “Trijicon SRO REPLACEMENT BATTERY CAP” 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 GRIP MODULE WCP320 CRRY TAN MS $6795 Sale! POF USA DICTATOR GAS BLOCK MIDLENGTH $16300 $16234 Wilson Combat GRIP MOD WCP320 CARRY BLK $6795 Wilson Combat LOWER RECEIVER PARTS KIT AR-15 $4995