The Tippmann Stryker has a fully programmable board with firing modes including semi, burst, ramping and full-auto. These markers are tournament legal as they require an allen key to change settings. All of the new Stryker markers are Autococker threaded so it will accommodate the majority of paintball barrels on the market. Not only is the marker well-built but the maintenance is extremely easy. Access to the to the firing engine is fast so you can get in, lube everything and keep your Stryker in top shape. The customizable design makes hundreds of accessories including lasers, flashlights, rails and scopes easy to install.