Product Description Spawned from engineering talks during the Magpul modeled Glock(R) magazine basepad development, we decided to round out the ZEV Technologies catalog of innovative products with an extended base pad for the standard capacity Glock magazine. Our 3-piece design is easy to reassemble onto the magazine, and can be easily disassembled for cleaning without losing any parts NOTE: GLOCK magazine not included. Not compatible with restricted capacity GLOCK magazines. Technical Specs Adds +5 9mm capacity Fits standard capacity GLOCK 9mm magazines 3-piece design is easy to reassemble without damaging the mag body Additional power spring provided NOTE: Basepads are intended for use with 17 round magazines. Included Components Basepad assembly (3 pieces) Extra power magazine spring Compatibility Glock 17 (1st - 3rd Gen) Glock 17 (4th Gen) Glock 17 (5th Gen) Glock 17C (1st - 3rd Gen) Glock 17L (1st - 3rd Gen) Glock 22 (1st - 3rd Gen) Glock 22 (4th Gen) Glock 22C (1st - 3rd Gen) Glock 24 (1st - 3rd Gen) Glock 24C (1st - 3rd Gen) Glock 31 (1st - 3rd Gen) Glock 31 (4th Gen) Glock 31C (1st - 3rd Gen) Glock 34 (1st - 3rd Gen) Glock 34 (4th Gen) Glock 34 (5th Gen) Glock 35 (1st - 3rd Gen) Sellers Description In very good condition, Still in factory package, +5 Extension, Comes with 3 pieces.