Burris FastFire 3 Red Dot Sight with Picatinny Mount - 21x15mm Clear Objective Lens Diameter FastFire 8 MOA Dot 300236

Magnification: 1.07x - Sight Window: 21mm x 15mm; .82in x .59in - Elevation Adjust Range: 3� or 190 in. @ 100 yds - Windage Adjust Range: 3� or 190 in. @ 100 yds - Set Value for one Scale Division: 1 MOA or 1 in. @ 100 yds. w/ 60 scale divisions per turn - 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): 1.8in x 1in x 0.9in - 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 Manufacturer Part Number: 300236