Crosman Custom Fiber Optic Front Sight - Fits 2240 2250 2260 2289 760 (1322's 1377's with longer barrels) This is a custom fiber optic front sight for various Crosman models. It will fit any of the standard 7/16" OD barrels that have the small notch on the top-center (any OEM barrel). Will fit barrels without the notch, but super glue may be necessary. As such, it will fit the 2240, 2250, 2260, 2289 and 760. It will also fit 1377 and 1322's that have a longer barrel installed. Your standard factory sight taps off with a well placed screwdriver/random flat edge and mallet. New sight taps on with mallet from opposite direction. Again, this will only fit 1377 and 1322 models if you have already installed a longer barrel.