The Aimpoint CompM4 sight, with high battery compartment, belongs to the CompM4 series of sights which are the finest sights Aimpoint has ever produced. All Comp sights are soldier-tested and combat-proven, in other words they are extremely robust high quality products.

The Aimpoint CompM4 series of sights are the toughest sights that Aimpoint has ever produced. These optics are extremely rugged and operate continuously for up to 8 years using a single AA battery. The competition is not even close.

Features and Specifications:
Magnification:1x
Lens: Front Objective Is Threaded For KillFlash Anti-Reflective Devices
Compatible With Every Generation Of NVD
Matches Perfectly With Aimpoint 3X Magnifier
Unequaled Light Transmission
Adjustment: 9/16" (0.5625") At 80 yds Per Click (16mm at 100m)
Reticle Type: 2 MOA Dot For Close Combat And Long Distance Engagement
Brightness Settings: 7 NVD Settings And 9 Daylight Settings
Mount: QRP2 Mount
Batteries: Uses (1) AA
Battery Life: ACET Technology Allows Up To 80,000 Hours (8 Years) Of Daytime Operation On 1 AA Battery
Internal Voltage Regulator Allows The CompM4 To Be Used With Any AA Size Battery
High Battery Compartment
Operating Temperature: -49F To +160F (-45C To +71C)
500,000 hrs Total Lifetime Use On NVD Setting
Improved Adjustment Caps Are Easier To Remove And Protected
Can Be Used With A Carry Handle Adapter For Use On All M16 Rifles
Mechanical Switch For Speed And Reliability
Submersible To 150 ft (45 m)
Includes Bikini Rubber Lens Covers

Note: This product is new and being closed out; sold "As Is" and is not returnable to Cheaper Than Dirt. Please contact the manufacturer for warranty and assistance.