The MagnetoSpeed Sporter Chronograph kit was specifically designed to be used on barrels from .5" up to 1" diameter barrels. The sporter will also work in conjunction with muzzle brakes and flash hiders up to 2.7" in length. You can also easily use the sporter on contoured rifle barrel and long barreled revolvers.

Specifications and Features:
MagnetoSpeed Sporter Barrel Mounted Ballistics Chronograph MSSP
Simple, one-button cycling display (shows recent shot velocity and statistics, plug in to turn on)
Runs on a single 9-Volt Battery (included)
Easy access battery compartment, no need for screwdriver to swap batteriesThree 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

Includes:
Display Unit
Bayonet-style sensor (Bayo)
Thick and thin rubber V-block spacers
Heavy duty strap with thumb nut tightener
Ultra-compact storage container