The Aimpoint Patrol Rifle Optic 30mm Red Dot Scope offers the best first shot hit probability and enhanced speed on target that will impress you with every use. These Red Dot Sights from Aimpoint use a hard-anodized 30mm tube with a high efficiency circuit that allows the sight to be left running for up to three years on a single battery. Mounting easily with the included QRP2 rail grabber mount, the Aimpoint Patrol 30mm Red Dot Rifle Scope is perfect for using with your flat-top AR15, M4 Carbine, and M16 Rifles. The Aimpoint 30mm Pro Patrol Scope features flip-open front and rear lens covers to protect your valuable optics, in addition to the threaded front lens opening which allows an anti-reflection device, as well as a transparent rear cover for emergency use. When you want the most reliable and precise red dot scope, the Aimpoint Pro Patrol Waterproof 30mm Red Dot Sight will meet all of your needs in any conditions.Specifications for Aimpoint PRO - Patrol Rifle Optic - 2 MOA 1x38mm Red Dot Reflex Sight:Manufacturer:AimpointColor:BlackFinish:Semi Matte, AnodizedFabric/Material:AluminumMagnification:1 xObjective Lens Diameter:38 mmReticle:2 MOA DotIllumination Type:LEDIllumination Color:RedBrightness Settings:10Eye Relief:UnlimitedAdjustment Click Value:0.6 in at 100 ydsParallax:FreeOptical Coating:Multi-CoatedLight Transmission:60 %Battery Type:Lithium, DL1/3NBattery Quantity:1Battery Life:30,000 hoursOperating Temperature:-49 - 160 Fahrenheit, -45 - 71 CelsiusWater Resistance Level:WaterproofWater Resistant Mark:150 ftGun Make:Universal, AR PlatformGun Model:AR-15, UniversalLength:5.2 inWidth:2.8 inHeight:3.2 inWeight:11.6 ozIncluded Accessories:QRP2 Mount, Standard AR15 SpacerCondition:NewPackage Type:BoxMagnification Type:FixedLens Finish:Multi-Layer Anti-ReflexQuantity:1Tube Diameter:30 mmSwitch Type:Rotary SwitchAttachment/Mount Type:QRP2 MountWavelength:650 nmFeatures of the Aimpoint 30mm Tube Patrol Pro Red Dot Sight:Turn it on for up to 3 years using one single battery.No need to fumble with switches prior to use.In service date and battery change date reminders makes inventory tracking and maintenance easy.Enhanced speed on target and increased first shot hit probability when compared to iron sights and magnified scopes.Compatible with all generations of night vision devices and may be used with Aimpoint 3X Magnifier and Concealed Engagement unit.Hard anodized aluminum alloy housing.Rugged enough for real world conditions and waterproof to 150 feet.Threaded front lens opening allows use of screw-in anti-reflection device (ARD).Front and rear flip covers keep lenses clean.Transparent rear flip cover allows use of the sight (with both eyes open) even with both covers closed in an emergency.Individual retainers for both windage and elevation.Modular mount set up for use on flat-top AR15, M4 Carbine and M16 rifles.Remove spacer for use on shotguns and sub-guns.QRP2 rail grabber mount.Snap knob three times for a perfect mount.Will not deform your rail like many other mounts.Recessed lens openings helps prevent against impact damage, fingerprints and scratches.CompM4 M68CCO Style windage and elevation caps.Package Contents:Aimpoint PRO - Patrol Rifle Optic 2 MOA Red Dot Reflex SightQRP2 MountBase & Top RingStandard SpacerFlip-up Lens CoversDL1/3N BatteryAllen KeyAimpoint 12841: PRO - Patrol Rifle Optic - Red Dot Reflex Sight, 2 MOA Dot Reticle, w/ QRP2 Mount & Spacer, Black, Semi Matte, AnodizedAimpoint 12841-KIT1: PRO - Patrol Rifle Optic - Red Dot Reflex Sight, 2 MOA Dot Reticle, w/ SIDELOK Mount, QRP2 Mount & Spacer, Black, Semi Matte, Anodized