TacFire Tactical One Slot Offset Side Mount 45 Degree Angle Picatinny Rail for Red Dot Sight,Laser, Flashlight TacFire Official Product, constructed from aircraft grade aluminum Alloy with Anodized Black Finish Light Weight and Durable . Works for Picatinny Rails. Smart Rail for Versatile Accessory Placement at 45 Degree Angle to Allow for Instant Aiming, Switching Between Iron Sight, Optical Sight, Laser and/or Flashlight Tight Tolerance Control with Anti-rotation Feature Length: 1" Width: 2.3"