This 4-piece intermount readies Benjamin and Sheridan air rifles and pistols for optics. This dovetail mounting solution is compatible with Benjamin and Sheridan air rifles (models 392, 397, CB9, C9) and pistols (models EB17, EB22, HB17, HB22). It is also compatible with earlier Benjamin rifles (models 310, 312, 317, 340, 342 and 347) or rifles with old style, permanently affixed rear sights, and current Sheridan models.