A fully machined aiurgun suppressor for the Benjamin Maximus, Discovery, and other Crosman rifles and pistols that use the standard .435 (7/16" barrel). Custom lengths are available for special projects. Call or email us your needs. Will Fit and work great on these models: - Benjamin Discovery and Benjamin Maximus Standard Rifles -Crosman 1300KT, 2240, 2300, 2300T/S, 2400KT, 2250, 2260, 1740, 1760, 760 pistols and rifles. - Will also fit the 1377/1322 and 2289 with a barrel of at least 11.25". - Crosman MK-177 with modifications to the factory flash hider. - Umarex Gauntlet .177 and .22 with the factory shroud removed, however, we recommend a larger .875" TKO Mod for that rifle. Will not fit the 2240 "XL" version .. See Section 5...> We can add ramp front sight to this model. The sight is very close to the factory ramp front sight height found on most Crosman 2240 style pistols as well as the Benjamin Discovery and Maximus rifles. Simply enter "Add Ramp Sight" in the Note to TKO section. NOTE: This Mod will fit the Benjamin Maximus "Standard" rifle. If your Maximus is the "Euro" or "Hunter" model (threaded), please see Ordering Section 5.