Product Description The Strike Industries Aluminum Extended Magazine Plate for SIG SAUER P320 (9mm) is designed to upgrade compatible 21, 17, and 15-round SIG SAUER P320 magazines with an additional +5 rounds of 9mm capacity. Precision-machined from durable 6061-T6 aluminum, this extended base plate features a slim, low-drag, no-snag profile built for hard use and faster handling. With dimensions designed to comply with USPSA 140mm race division limits, it is a strong option for both range and competition setups. Product Highlights Adds up to +5 rounds of 9mm capacity for compatible SIG SAUER P320 magazines Fits SIG SAUER P320 21-, 17-, and 15-round OEM magazines Machined from robust 6061-T6 aluminum for long-lasting performance Slim, low-drag, no-snag design for improved handling and reduced snag points Designed to meet USPSA 140mm race division length limits Specs Brand: Strike Manufacturer Part Number: EMPALP320FDE UPC: 793811766585 Compatibility: SIG SAUER P320 9mm magazines (21/17/15-round) Capacity Increase: +5 rounds (9mm) Material: 6061-T6 Aluminum Finish/Color: Flat Dark Earth Weight: 1.97 oz Dimensions: 1.4 in (L) x 1.15 in (W) x 1.4 in (H) Additional Part Number Reference: SI-EMP-AL-P320-FDE 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.