Umarex 2251302 Octane Air Rifle Combo with ReAxis Gas Piston, .177-Caliber, Black Finish
The Umarex 2251302 Octane Air Rifle Combo is a magnum velocity air rifle at 1250 feet per second with a .177 alloy pellet. The Octane is one of the first two break barrel rifles introduced under the Umarex brand. The Octane incorporates both a gas piston and a noise dampener. This gun is unique in that its gas piston operates in reverse of other gas pistons on the market. Termed the ReAxis Reverse-Axis Gas Piston, it has shown to provide an increase in velocity.