BARSKA Green Micro GLX Laser Sight
http://www.amazon.com/gp/product/B007R6GL9O?tag=sukses2015-20
Ideal for compact and sub-compact pistols with virtually no overhang
The ambidextrous tap onoff button will not snag on anything when hoisted or carried in bag
Built-in weaver standard compact mount means this laser virtually mounts on to any firearm with a weaverPicatinny accessory rail
Includes 1 CR-2 lithium battery
Lightweight and durable-Only 2-Inch in length