The ST18 is an Atomatic Rifle wth a high fire rate isued to the U.S millitary. It chambers 25mm and can be equiped to fire a chain. It is a primary rifle for those who need to get through an enemy fast and and clean. The ST18 A.R. has low enough recoil to keep the gun on target so no causualties are shot. It can fire constantly for a hole day before the barrel over heats.

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