The double pistol mag pouch is perfect for carrving additional magazines or tools on your loadout. With a compact size, this pouch is compact and attaches to your tactical belt. The pouch is probably the most adaptable mag pouch you will ever find. You can run single and double magazine, such as 9mm/.40 Calibers 45acp Glock S&W M&P, Sig 226/229, and Springfield 1911. With this versatility, it also can hold you flashlight,multi tool, a variety of mags, or similar shaped tools.