XTech Tactical MTX43 +3 Magazine Extension Kit 9mm Luger for Glock 43

The XTech Tactical MTX43 is a +3 magazine extension kit built specifically for the factory Glock 43 single-stack 9mm Luger magazine. Drop the kit on your existing 6-round Glock 43 mag and capacity jumps to 9 rounds without any permanent modification to the host magazine body.

The extension is molded from injection-molded polymer and finished to match the factory Glock texture and look, so the upgraded mag keeps a clean, factory-style profile. A 17-7 stainless steel replacement spring is included in the kit to ensure reliable feeding with the increased round count, and the design follows XTech's patented MTX extension platform used across their Glock magazine line.

Designed and made in the USA by XTech Tactical, the MTX43 +3 is a straightforward way for Glock 43 owners to add three rounds of 9mm Luger capacity for everyday carry, home defense, or range sessions. Installation is simple: swap the factory base plate and spring for the MTX43 extension body and included 17-7 spring.