The Kriss MagEx Kit 2 extends your factory Glock 21 magazines from standard 13-round capacity to 30 rounds total. Built for the Kriss Vector and magazine-fed pistol caliber carbines, this kit delivers serious capacity gains without compromising reliability. Inclusion of durable reinforced composite materials keeps weight minimal while maintaining structural integrity under heavy use. The extended baseplate, outer sleeve, and matched spring work as a unified system, engineering-tested to function smoothly across repeated charge and fire cycles. This is a practical upgrade path for shooters running Glock-pattern magazines in their Kriss platforms. Do not use with 10-round reduced capacity magazines; this kit is engineered specifically for standard-capacity G21 platforms. Capacity and Durability - Extends standard 13-round G21 magazines to 30-round total capacity - Reinforced composite construction resists wear and flex - Matched extended spring maintains reliable feeding throughout capacity range - Black finish blends with standard equipment Compatibility and Installation - Works with factory Glock 21 magazines only - Fits Kriss Vector, Glock handguns, and compatible pistol caliber carbines - Simple baseplate swap installation - Incompatible with 10-round restricted capacity magazines Material and Build Quality - Lightweight reinforced composite eliminates bulk - Outer sleeve provides structural support during insertion and removal - Finished components ready to use without modification Specifications - Caliber: 45 ACP - Base Magazine: Glock 21 Standard Capacity - Final Capacity: 30 rounds - Material: Reinforced composite - Finish: Black - Kit Contents: Extended baseplate, outer sleeve, extended spring The MagEx Kit 2 transforms standard Glock 21 magazines into serious-capacity platforms. If you're running a Kriss Vector or any Glock-compatible PCC, this extension delivers the round count needed for extended range sessions or tactical applications without requiring different magazines.