The HK VP9 .177 caliber blowback slide air pistol is another must have Umarex replica from one of the most renowned names in the arms world. Get the same ergonomics, function, and fit from a full size replica that you can use in your garage. Getting into action is easy with the drop free magazine that houses 18 airgun BBs along with the 12 g CO2 cartridge. The Heckler & Koch VP9 is also equipped with a Picatinny style accessory rail located underneath the barrel. Features: Drop free 18-shot magazine Blowback slide action CO2 powered