Kel-Tec S2K221 SUB2000 Magazine Sleeve Fits Glock 17 Gen3 Black Polymer

The Kel-Tec S2K221 SUB2000 Magazine Sleeve is a purpose-built polymer accessory designed to slide over Glock 17 Gen3 magazines and seat flush in the magazine well of a SUB2000 Gen3 GLK carbine. The sleeve acts as a grip extension, eliminating the visible and tactile gap left between a standard Glock pistol magazine and the SUB2000 magwell when the carbine is folded or shouldered.

Constructed from durable black polymer, the sleeve matches the handling characteristics of the magazines it covers. It is engineered specifically for Glock 17 Gen3-pattern magazines, which are the factory feed source for the SUB2000 Gen3 GLK variant, and installs by sliding directly over the magazine body with no tools or modifications required.

Sold as a single sleeve (1-pack), this is a factory Kel-Tec accessory (part S2K221) intended for SUB2000 owners who run Glock-pattern magazines and want a cleaner, more positive magwell fit.