The KRISS EX2 Kit extends Glock 21 magazine capacity from the factory 13 rounds to 17 rounds of .45 ACP, adding four rounds without sacrificing reliability.
Part Type: Magazine Extension Kit
Compatible Firearms: Glock 21 (.45 ACP)
Capacity: Extends to 17 rounds total
Material: Polymer baseplate
Finish: Black
Installation: User-installable with basic tools and magazine disassembly knowledge
Includes: Extension baseplate, extended spring, and installation components for one magazine
