Front and rear AR-15 45 degree offset sights that stow away under optics, and swing out at a 45 degree offset for quick use of iron sights in closer quarters. The Diamondhead D-45 integrated sighting system provides visual reference points during high speed, high stress shooting. The conventional rear sight's round aperture and round (HK style) front sight housing, can make shooting at longer distances difficult and inaccurate. Remember, rear sights are blurry during aiming. The simple fact is that it is easier for the eye to find the exact center of a blurry diamond than the exact center of a blurry circle. It is even easier and quicker for the eye to find the exact center of a Diamondhead rear sight's aperture with the added posts at the corner of the diamond. These proprietary reference posts are unique to the Diamondhead sight and are not found on any other iron sight. The re-styled upper housing of the rear sight makes rapid aiming even easier and for CQC aiming, target acquisition can be made with the apertures flat and by merely aligning the rear upper housing with the front sight post.
The other main reason the Diamondhead diamond-shaped aperture is better than a conventional round aperture is because round apertures don't give a truly ROUND picture of the front sight and target. The front sight tower of the rifle obscures the bottom portion of the conventional rear sight round aperture. This causes the the bottom part of the round aperture to be flattened - not round. The result is that it is harder for the eye to quickly make an accurate decision about how high up in this flattened circle is the exact center. Take a look at a set of conventional round sights to see. The 3:00 o'clock and 9:00 o'clock corners of the Diamondhead aperture, combined with the added accuracy of the proprietary Diamond-shaped upper housing eliminates this problem. Used in combination with the Diamondhead DIAMOND Flip-Up Front Combat Sight or the Diamondhead "Auto-Ranger" Flip-Up Front Combat Sight, there will always be a clear reference for considerably more accurate (and faster) target acquisition.
Features and Specifications:
Manufacturer Number: 1799
Patented Diamond-Shaped Apertures and upper housing for faster target acquisition and centering
Rear Sight's Diamond-shaped upper housing enables fast CQC with apertures flat
Dual same plane short and long range apertures (at exact height of factory A2 sights)
Stows under magnified optic
Deploys and stows with small or large aperture active
Accurate 0.5MOA windage adjustment
Proprietary Diamond-Shaped housing
Secure and accurate elevation adjustment
Accepts all standard A2 front sight posts