Abstract: A motorized telescopic adjustment device 10 is disclosed which is connected to an adjustment ring 6 of a telescopic sight 4 for firearms 2 or the like including: a battery 12, a motor 14 with a switch 16 electronically interconnected to power the motor 14, a drive 30 interconnected to the motor 14 and the adjustment ring 6 to adjust the telescopic sight adjustment ring 6, a support bracket assembly 40 adapted to adjustably mount the device 10 on the telescopic sight 4 and a motor connection 60 for securably mounting the motor 14 on the support bracket assembly 40. The support bracket assembly 40 includes a front and a rear mounting bracket subassemblies 42, 44 which are adjustable along a rod 50 which extends between the front and rear mounting bracket subassemblies 42, 44, the front mounting bracket subassembly 42 including a protruding boss 49 for receiving the rod 50.