Crosman LPA MIM Metal Rear Sight - Fits Steel Breech Kit - 2240 2250 2260 2289 1377 1322 Brand new, genuine Crosman LPA MIM rear sight. Especially suited to the Crosman Steel Breech Kit upgrades. As such, will fit any of those models (1377 1322 2240 2250 2260 2289, etc). Adjustable for windage and elevation and fits 3/8" dovetails.