TRUGLO just released a micro laser sight called the Micro-Tac. Being small it's ligtweight as well and is available in red and green lader versions. It can be used best with pistols if you don't want laser sights that will make them front heavy. The green laser version costs US$178.00 whilst the red laser is cheaper at US$95.00.

• Universal Fit - Fits any weapon with a Picatinny or Weaver-style rail
• Ultra-compact size is ideal for concealed carry
• Next generation, high-efficiency semiconductor laser diode
• Easy ambidextrous push-buton activation for left and right handed users
• Extremely lightweight aluminum
• Constant and pulse laser settings
• Recessed on/off buttons eliminate accidental activation
• Requires minimal rail space
• Automatic shutdown after 5 minutes
• Windage and elevation adjustment
• Operating temperature: 14°F (-10°C) to 122°F (50°C)
• Water and shock resistant
• Durable/micro design
• Weighs less than 1 oz.
• Bonus: 2 sets of batteries included (LR626)
• Instructions included
• Two-Year Limited Warranty