The FastFire III offers upgraded features such as windage and elevation adjustments that don't require a special tool; a convenient power button with three levels of brightness and an automatic brightness setting and battery access on the top of the sight making it easier to change batteries. We've also added a low battery warning indicator and see through protective cap

Specifications and Features:
Magnification: 1.07x
Sight Window:.82in x .59in
Elevation Adjust Range:3° or 190 in. at 100 yds
Windage Adjust Range:3° or 190 in. at 100 yds
Set Value for one Scale Division: 1 MOA
Subtension of the Aiming Dot: 4 MOA
Parallax-Free Sighting Distance: Approx. 50 yards
Recoil Resistance: At least 1000 G's
Operating Temperature Range:-10°F to +130°F
Power Supply: 3V with one CR 2032 Lithium battery
Dimensions: 1.8" x1"x 0.9"
Weight (in operating condition without mount): 25g
Smaller, lighter in weight and more compact than most red dot sights
Strong and durable with a frame made of stainless steel, bronze and anodized aluminum
Can be mounted directly on almost any weapon including on the slide of a semi-automatic pistol
Since eye relief is unlimited, the FastFire can be used on handguns, rifles and shotguns
Low magnification provides an extremely large field-of-view
Multicoating is sandwiched between two highly polished, optical quality glass lenses for protection from scratches and abrasion and a bright, clear sight picture
Light-emitting diode

Includes:
2 #6x48 countersink screws with Torx socket head for installing the sight on the mounting plate
1 Torx wrench to tighten fasteners
1 screwdriver
1 adjusting disc
1 protective cap
1 3V Lithium battery (CR 2032)
Operating instructions
Picatinny style mount