Top mounted battery making it easier to change batteries; upgraded windage and elevation adjustments, and a convenient power button that provides three manual brightness and an automatic brightness setting. They've also added a low battery warning indicator and see-through protective cap.

300236 Burris FastFire III Sight Features:

• Can be used on pistols, shotguns or patrol rifles
• Fits all Weaver and Picatinny-style bases
• Upgraded windage and elevation adjustments
• Top mounted battery makes it easier to change batteries
• Convenient power button provides three manual brightness and an automatic brightness setting
• Fully waterproof
• Ruggedly designed
• Lightweight
• One-Year Warranty

300236 Burris FastFire III Sight Specifications:

Model Number: 300236
Magnification: 1.07X
Sight Window: 21mm x 15mm; .82" x .59"
Elevation adjustment range: 3 degrees
Set value for one scale division: 1 MOA
Subtension of the aiming dot: 4 MOA (10.5cm@100m)
Parallax-free sighting distance: approx. 50 yards
Recoil resistance: At least 1000 G??s
Operating Temperature Range: -10°F to +130°F (-25°C to +55°C)
Storage Temperature Range: -40°F to +160°F (-40°C to +70°C)
Power Supply: 3V with one CR 2032 Lithium battery
Dimensions: (LxWxH) 1.8"x1.0"x0.9" (46mm x 25.4mm x 23.7mm)
Weight: 0.9 oz.