KRISS MagEx 30 Round Extended magazines, Fits Glock 21 and Kriss Vector. I am selling 4 magazines total. 50 dollars each, 200 total. The MagEx is the perfect match of reliable feeding, toughness, and aesthetics for the KRISS Vector and/or Glock 21. This version delivers a 30-round capacity in .45 ACP for your KRISS Vector, Glock 21, and any Glock magazine-compatible pistol caliber carbine.