This is an XGRIP magazine adapter for SUBCOMPACT Sig Sauer P320/P250SC pistols in 9mm, .40 S&W, .45 ACP and .357 SIG These ultra-durable polymer magazine adapters snap onto the base of your higher capacity P320/P250C magazines, allowing you to use them safely with your Subcompact P320/P250SC pistols. Trusted by military & law enforcement and issued as factory equipment by major manufacturers like Sig Sauer and S&W, XGRIP magazine adapters are the gold standard within the industry. They’re made from high-quality, impact-resistant polymer and designed to enhance your pistol’s ergonomics. The XGRIP XGS320/250SC adapts the higher capacity SIGSAUER P320/250C magazine for use in the P320/250SC pistols, incorporating the larger magazine into the subcompact pistol’s grip, increasing the gun’s capacity. Compatible with SIGSAUER factory original new style P320/250C magazines only. XGRIP adapters install in just a few seconds without any tools or special equipment-enhancing ergonomics and acting as a mechanical over-insertion stop to protect your pistol’s internals. Grab a few XGRIP adapters for your arsenal today!