The Strike Industries aluminum extended magazine plate for Sig Sauer P320 (9mm) is meticulously crafted to seamlessly fit 21, 17 and 15-round Sig Sauer P320 magazines. Adding an additional 5-rounds for 9mm, this plate is precision-machined from robust 6061-T6 aluminum to ensure durability capable of withstanding frequent use. Installation is straightforward and secure, thanks to its adaptable design fitment that guarantees a precise fit. Weighing just 1.97 oz, the Strike P320 EMP features a slim, low-drag, no-snag design that not only enhances aesthetics but also optimizes performance. Its dimensions comply with USPSA rules, making it an excellent choice for competitive shooting. Choose from stylish anodized finishes in SI BLACKLINE or FDELINE to match your personal style. Elevate your shooting experience with the Strike Industries aluminum extended magazine plate for Sig Sauer P320 (9mm), delivering reliability and superior engineering to enhance functionality in any shooting scenario.