The new UMAREX DS11 .177 caliber BB pistol. In the firearms world, the 2011 is a double-stack 1911 style pistol with a modern design twist as the manufacturer sees fit. With the UX DS11, we give you the big grip feel of the 2011 design with an aggressively cut slide that has dual cut-away windows, under-barrel Picatinny rail, and high-set sights. The DS11 launches steel BBs at 400 FPS and the stick magazine holds 18 BBs at the ready. The left grip plate pops off so you can insert a CO2 capsule. Just remember to put a drop of silicone oil on the tip of the cartridge to keep the valve seal in good shape and don't leave a charged cartridge in the pistol.