Tiberius Arms T15 Paintball Guns utilize First Strike Rounds and Roundballs with the AR Platform to provide several tactical Applications. The Long Range DMR set up provides a great Base Platform for a Sniper. While The Machine Pistol Variants provide the most compact version with the Select Fire Trigger. In between the CQB and PDW provide a maneuverable compact option. On any Model the available Select Fire trigger can be installed to provide Full Auto and Semi Auto firing modes. There is a range of different barrel and adapter options. Even if paintball isn't for you this has an Air-Soft variant as well. With all of the available options this is the most modular Tactical gun on the market.