This 'shorty' is only 2.75" in length. 

Features

Aluminum body

Advanced Focus System

One-handed Speed-Focus

Rear on/off switch

Specs

Lumens:  14.7

Effective Range:  0-113 ft

Max Watt:  .6

Battery:  4 AG13

Battery Life:  55 hrs

Length:  2.75 inches long / 0.8 inch head diameter

Weight: 1.2 oz