Taran Tactical Innovation Firepower Base Pad Kit Features The Taran Tactical Innovations Firepower Base Pad Kit extends a full-size M&P 9/40 magazine by +2 or +4 rounds giving competitors and defensive shooters more rounds on tap without switching to an entirely different magazine. It is designed to work with the stock magazine spring so there is no need to source a stronger aftermarket spring to run the extended capacity reliably. The kit measures 1 and 1/2 inches on the front side and 1 inch on the back side and it fits the USPSA 140mm gauge keeping the magazine legal for Production Division competition. CNC machining from billet aluminum and a hard anodized finish give the base pad the durability to handle repeated use and hard drops during a match. A patented push-pin design lets the base pad attach and detach from the magazine easily with no specialty tools or devices required to disassemble it. The one-piece design means there are no small parts to lose while servicing the magazine between stages. The added weight at the base of the magazine helps it drop free more consistently during a reload which shaves time off every mag change in a timed stage. This Firepower Base Pad Kit does not work on the Compact Competitor Series or Metal Series M&P magazines but is used and endorsed by champions like Jerry Miculek Team Miculek and Julie Golob and is available for sale at GrabAGun. Taran Tactical Innovation Firepower Base Pad Kit Specifications Manufacturer: Taran Tactical Innovations Model: Firepower Base Pad Kit Type: Magazine Base Pad Compatible Hosts: Smith and Wesson M&P 9/40 Full Size Capacity Increase: +2/+4 Rounds Capacity: 17+1 .40 S&W / 21+1 9mm Material: Billet Aluminum Finish: Hard Anodized Attachment: Push-Pin Design Compliance: USPSA 140mm Gauge Production Division Legal Available At: GrabAGun