Product Description The Taran Tactical Innovations Firepower Base Pad is a precision-engineered magazine extension designed to fit any full-size Smith and Wesson M&P 9mm and .40 S&W pistol. Adding 5 rounds of .40 S&W or 6 rounds of 9mm to your magazine, this base pad gives competitive shooters and tactical users a decisive edge. The added weight also helps the empty magazine drop free more easily, enabling faster reloads. CNC machined from billet aluminum and finished with a durable hard coat anodize, this base pad features TTI&';s patented push-pin design for tool-free attachment and quick field stripping between stages. All machining and manufacturing is proudly done in the USA. Product Highlights Fits full-size Smith and Wesson M&P 9mm and .40 S&W pistols -- does not fit Competitor Series, Metal Series, or Compact models Adds +5 rounds of .40 S&W or +6 rounds of 9mm; holds 20+1 rounds of .40 S&W and 23+1 rounds of 9mm total Patented push-pin design enables tool-free, one-piece attachment and fast field stripping for easy magazine cleaning between stages CNC machined from billet aluminum with a hard coat anodized finish for long-lasting durability and color retention Includes a 10% stronger spring; fits the USPSA 140mm gauge for competitive shooting use Specs Brand: Taran Tactical Innovations MPN: MPB940-01 UPC: 810003108289 Type: Magazine Extension / Base Pad Compatible Pistols: Smith and Wesson M&P 9mm Full Size, Smith and Wesson M&P .40 S&W Full Size Capacity Increase: +5 rounds (.40 S&W) / +6 rounds (9mm) Total Capacity: 20+1 rounds (.40 S&W), 23+1 rounds (9mm) Material: Billet Aluminum Finish: Hard Coat Anodized Color: Black Spring: 10% Stronger Spring Included Width: 3.00" Length: 11.00" Height: 1.25" Weight: 0.13 lbs USPSA Compliance: Fits USPSA 140mm Gauge (Not legal for Production Division) Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.