The most compact airsoft sniper rifle, in the airsoft market, the Ares Amoeba Striker AS03 is in stock right now at Bang Bang Big Boys Store. It has a short stroke bolt, a lightweight Polymer body, a 45-round capacity and fires at around 380fps. If you find sniper rifles too long, then try this, you can even use it one-handed, but you need another free hand to pull the bolt.