Shop › KRISS EX2 KIT FOR G21 +17RD 45ACP BK KRISS EX2 KIT FOR G21 +17RD 45ACP BK $32.99 KRISS USA, Inc Magazine Extension, 45 ACP, +17 Rounds, Black, Fits Kriss VECTOR, Fits Glock 21 Magazines KVA-MX2K45BL00 Quantity: Add To Cart Added! KRISS USA, Inc Magazine Extension, 45 ACP, +17 Rounds, Black, Fits Kriss VECTOR, Fits Glock 21 Magazines KVA-MX2K45BL00