Product Description The KRISS MagEx2 Kit is the ultimate capacity extending base plate for your factory standard Glock magazines, Gen 3 and later. The KRISS MagEx2 Kit is made up of the extended baseplate, outer sleeve, and extended spring, constructed of durable and lightweight reinforced composites. Combining the MagEx2 Kit with the factory standard Glock magazine body and follower is a perfect match of reliable feeding, toughness, and aesthetics for the KRISS Vector. The MagEx2 Kit is caliber-specific and available in 9mm, 10mm, and .45ACP and designed for standard capacity G17, G20, and G21 magazines for an overall capacity of 40 rounds of 9mm, 33 rounds of 10mm, and 30 rounds of .45ACP for your KRISS Vector, Glock handgun, and your Glock magazine-compatible pistol caliber carbine. Features Material: Polymer Color: Black Requires: Standard Glock Magazine - please see chart for compatibility Includes: Extended Base Plate, Outer Sleeve, Extended Spring Specifications Caliber Mag Capacity (assembled) Compatibility 9mm 40 rounds G17 17rd" 10mm 33 rounds G20/G40 15rd 45ACP 30 rounds G21 13rd Disclaimer You are responsible to know and comply with your state and local magazine capacity laws. A 4% administrative fee will be applied to orders that must be cancelled. This item cannot be shipped to states with magazine capacity restrictions. This includes, but is not limited to, California, Colorado, Connecticut, Hawaii, Illinois, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Washington D.C., and Vermont. MagEx2 Kit is designed for factory GLOCK full size, standard capacity magazines of the correct model. We do not guarantee fit nor function when using aftermarket magazines or incorrect magazine models. Incompatible with reduced capacity 10rd magazines, compact magazines, and subcompact magazines. This is a kit only; magazine body and follower not included. Due to spring