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Diamondhead Rear Sight Gen2 - Folding - AR15/M4/M16 - 1101

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You will receive fast, free shipping for all orders over $35

Shipping cost is $5.50 for orders under $35. We ship with UPS and USPS. 

Most orders ship out within 24 hours

You will receive tracking information immediately at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses.  

We have a 90-day no-hassle return policy. We pay return shipping.

If you need to request a return, contact us at and we will send you a return label

After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.

Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at We may direct you to pursue your warranty claim directly with the manufacturer.

Your satisfaction is our #1 priority

If you're dissatisfied with your purchase, in any way, please contact us at - we will do our best to make it right.

Product Options

Got Diamondhead VRS Drop-In and Free-Floating Handguards or any Mil Std M1913 Picatinny rail systems? Equip it with Diamondhead's DIAMOND Flip-Up Rear Sight, for faster and greater precision.

Diamondhead's DIAMOND Flip-Up Rear Sight's revolutionary design incorporates the original and proprietary Diamond-Shaped Apertures™ (Pat. & Pat. Pend.) and a re-designed upper housing - allowing the eye to place the front sight post in the exact center of the rear aperture.


  • Proprietary Diamond-Shaped apertures, reference posts and horizon bars; For lightning fast target acquisition and centering
  • Re-styled Diamond-Shaped Upper Housing; New and improved
  • Dual same plane short and long range apertures (at exact same height of factory A2 sights); Pick them off whether they are near or far
  • Fully deploys and stows with small or large aperture active; Flip-to-ready and Stows-to-standby without fuss
  • Secure and accurate 0.5 MOA windage adjustment; Set windage and keep it set
  • Flips up quickly for rapid deployment; Ready in a flash
  • Folds down with the push of a button; Stows in jiff
  • Locking system ensures sight stays up securely and remains zeroed; Steady and solid
  • Easy installation with proprietary clamping system; Providing secure attachment to all Mil. Std 1913 Picatinny Rails
  • Diamondhead® PREMIUM Flip-Up Front & Rear DIAMOND, Auto-Ranger™ and HYBRID sights are designed to work together; Together they become the Diamondhead® Integrated Sighting System™
  • Mil Spec stainless steel and Type 111 black anodized 6061 T6 aircraft aluminum construction; Light, strong and protected to last
  • Combat Durable; Field tested



Material: Steel, aluminum

Finish: Type 111 black anodized

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