Aimpoint is a household name in optics that will outlive you, your son, and your grandson. It's legendary reputation in military service really started with this, the CompM, also referred to as the M68 Close Combat Optic. 

Although gargantuan by today's red dot standards, it's unbeatable reliability even by modern standards is nothing to sneeze at - It's a simple dot reticle with no gimmicks. On an even simpler hand-tighten thumb screw mount. Back in the day, all that plus the ability to shoot with both eyes open was a game-changer. Today, it's Justasgood™

For cloners of early 2000s M4s and other guns, it's spot-on and will probably eat your buddy's $120 SIG for breakfast while looking much more badass.

Whoda thunk something so quintessentially caveman-esque and American would come from Sweden?

Specs

• 1x Magnification
• 3 MOA Dot
• Aimpoint Lens Caps included
• Aimpoint Torque Knob MIL-STD-1913 Mount
• Uses DL1/3N 3V Lithium Batteries
• Waterproof to a depth of 25 meters
• 10oz with batteries

Condition

Optic is in excellent condition, with clean glass and reticle. Housing may be painted or have small scratches, but that's what you want for your clone build right?