Bausch & Lomb Elite 4000 4-16x50 Waterproof Riflescope (40-4165M)
The Bausch & Lomb Elite 4000 is a variable-power riflescope marked 4-16x50 with a waterproof construction and Japan manufacture. This example is stamped model 40-4165M and features an adjustable objective focus ring with distance markings.
Configured with exposed/uncapped windage and elevation adjustment turrets (marked with graduations) and a crosshair reticle, it is a straightforward optic for precision hold and dial use on traditional rifle setups.