Crosman 10.5" .177 Barrel - 1740 1377 1322 2240 2250 1789 2289 Crosman .177 Rifled Barrel 10.5" Long, .4365" OD Brand new, never installed, never fired. This is the perfect barrel for a 2240 to 1740 conversion. (You will need a .177 bolt and .177 o-ring, as well.) This may fit 1377, 1322, 2289, 2250 models, but may be just a touch too short. Good for a project anyhow!