Taran Tactical Innovation Magazine for Glock Competition Base Pad Features The Taran Tactical Innovations base pad works with Glock s stock magazine spring so there is no need to source an aftermarket spring to take advantage of the added capacity. It is designed to fit high capacity double stack Glock magazines across the 17 17L 19X 22 24 34 35 and 45 pattern though it will not work in G19 magazines. The added weight at the base of the magazine helps it drop free cleanly from the magwell which speeds up reloads when every tenth of a second counts in competition. Holding 21+1 rounds of 9mm or 18+1 rounds of .40 S&W it gives competitors a meaningful capacity boost within USPSA 140mm gauge limits. Machined from billet aluminum and hard anodized for durability this base pad is built to handle the repeated impacts of competition reloads without wearing down. The patented push pin attachment system lets shooters install or remove the pad in seconds with no specialty tools or devices required. Its one piece design eliminates loose parts that could otherwise go missing during disassembly keeping maintenance simple between matches. Used and trusted by the GLOCK Shooting Team and champions like Randi Rogers Allie Barrett and Taran Butler this base pad is a proven upgrade for competitive shooters running Glock magazines. Taran Tactical Innovation Magazine for Glock Competition Base Pad Specifications Manufacturer: Taran Tactical Innovations Model: GBP940-005 Type: Magazine Base Pad Compatible Hosts: Glock 17 17L 19X 22 24 34 35 45 Material: Billet Aluminum Finish: Hard Anodized Capacity: 21+1 Rounds 9mm 18+1 Rounds .40 S&W Gauge Compatibility: USPSA 140mm Available At: GrabAGun