KRISS MagEx 25+ Extension Kit for Glock 21 Magazine
The KRISS MagEx is a magazine extension kit for your .45ACP Glock 21 magazine. The MagEx adds an additional twelve rounds capacity to your G21 magazine for a total of 25+ rounds. The MagEx maintains functionality with your .45ACP Glock pistol. *Glock 21 magazine not included.