Shop › ADV ARMS CONV KIT FOR LE20-21 W/BAG ADV ARMS CONV KIT FOR LE20-21 W/BAG $285.00 Advantage Arms Conversion Kit, 22LR, 4.6" Barrel, Fits Glock 20/21/20SF/21SF, With Range Bag, Black Finish, 10Rd, 1-10Rd Magazine AACLE20-21 Quantity: Add To Cart Added! Advantage Arms Conversion Kit, 22LR, 4.6" Barrel, Fits Glock 20/21/20SF/21SF, With Range Bag, Black Finish, 10Rd, 1-10Rd Magazine AACLE20-21