Product Description The Taran Tactical Innovation (TTI) 4mm Base Pad is a mid-profile magazine extension engineered specifically for the Staccato, Infinity, Springfield Prodigy, Atlas, and other 2011-style magazines chambered in 9mm and 38 Super. Designed with competition shooters in mind, this base pad adds 2 rounds of capacity using the factory spring and follower - bringing a 140mm magazine from 20 rounds up to 22 rounds - while still fitting within the USPSA 140mm gauge. Finished in a durable black anodize, the STVB-4G01 pairs precise fitment with a clean, low-profile aesthetic that does not sacrifice compliance or reliability. Product Highlights Mid-profile 4mm extension recommended for the 140mm 2011-style magazine for optimal fit and function Adds +2 rounds of capacity (9mm) using the factory spring and follower - no additional components required Fully USPSA 140mm gauge compliant, making it ideal for competitive shooting applications Compatible with Staccato, Infinity, Springfield Prodigy, Atlas, and other 2011-style 9mm/38 Super magazines Durable black anodized finish for lasting corrosion resistance and a consistent, professional appearance Specs Brand: Taran Tactical Innovation MPN: STVB-4G01 UPC: 810003108616 Type: Magazine Base Pad / Extension Compatible Calibers: 9mm / 38 Super Compatible Magazine Style: 2011 (Staccato, Infinity, Springfield Prodigy, Atlas) Recommended For: 140mm 2011 Magazine Extension Height: 4mm Capacity Increase: +2 Rounds (with factory spring and follower) Gauge Compliance: USPSA 140mm Gauge Finish: Anodized Black 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. ]]>