The MagnetoSpeed Sporter chronograph kit was designed to be used on barrels from 1/2 inch up to 1 inch in diameter. In can also accommodate muzzle brakes, flash hiders, etc, up to 2.7 inches in length. Ideal for contoured rifle barrels (sporter barrels) and long-barreled revolvers.

MagnetoSpeed Sporter features

• Simple, one-button cycling display (shows recent shot velocity and statistics, plug in to turn on)
• Battery : 9-Volt (included)
• Easy access battery compartment, no need for screwdriver to swap batteries
• Three sensitivity settings for fine-tuning
• Integral, quick-attach strapping system; with metal buckle and triad thumb nut
• Proven technology with updated sensor design
• Integral 3.5 foot sensor cord