DOT Delta Optic Riser Mount: Extended 4.5-Inch Rail w/ Space for Magnifiers on Short Barrel Rifles

• The DOT Delta Optic Riser Mount solves one of the biggest headaches in close quarters: your gear blocking your view. This lightweight aluminum platform raises your holographic sight, so you can comfortably aim with night vision goggles or a gas mask without straining your neck. It gives you a natural head-up posture for much faster target acquisition when every second counts. 
• Aim Effortlessly While Wearing Gas Masks: The 2.26-inch optical centerline lifts your EOTech EXPS, Vortex UH-1, or Leupold LCO to provide unobstructed sight pictures when wearing bulky tactical respirators, preventing your gear from striking the rifle stock.
• Fit Multiple Devices on a 4.5-Inch Rail: The extended top rail provides enough room to attach your primary red dot right alongside a magnifier or forward-mounted laser system. This setup solves the problem of limited handguard space on short-barreled rifles and PDWs.
• Secure Your Zero with 7075-T6 Aluminum: This rugged platform combines high-strength aerospace aluminum with a Nitrite-coated steel clamp. It locks down tightly to your weapon, keeping your optic true zero during heavy recoil and rough handling.

Delta Optic Riser Mount Compatibility

System Compatibility & Supported Optics

The Delta Optic Riser Mount attaches securely to standard Picatinny rails to support a wide range of direct-to-rail, mailbox-pattern optics. By pairing this mount with your primary sight, you instantly raise your sight picture to a 2.26-inch or 2.33-inch centerline, enabling rapid target acquisition and passive night vision aiming.

Holographic Sight Elevations for the Delta Riser

• EOTech EXPS: Creates a 2.26-inch height, ideal for aiming passively through night vision goggles.
• EOTech XPS2: Elevates this low-profile optic to comfortably clear gas masks and forward-mounted lasers.
• EOTech XPS3: Provides a rock-solid, NV-compatible platform for fast CQB target acquisition.
• Vortex UH-1: Lifts the UH-1 for a taller head-up display, maximizing the 4.5-inch rail space for behind-the-optic magnifiers.

Red Dot & Reflex Sight Bases for the Delta Riser

• Leupold LCO: Securely clamps onto the LCO's integrated mount for enhanced tactical situational awareness without adding bulk.
• Holosun AEMS: Accommodates the AEMS Picatinny base to deliver a towering, unobstructed sight picture.
• Holosun HS510C: Maximizes your field of view by raising the HS510C for faster shoulder transitions and rapid firing.
• Sig Sauer Romeo8T: Pairs flawlessly with the Romeo8T's rugged Picatinny mount to create a fortified, elevated targeting system.
• Trijicon SRS: Secures this sealed reflex sight firmly to the 7075-T6 aluminum rail, ensuring it holds zero through heavy recoil.

DOT Delta Optic Riser Mount Features & Specifications

The Delta Optic Riser Mount delivers a secure, elevated platform that brings your red dot sight to an optimal 2.26 to 2.33-inch optical centerline. This extra height allows operators to comfortably aim while wearing gas masks or using passive night vision equipment, drastically reducing neck strain and increasing targeting speed on short-barreled rifles.

Key Features

• High Head-Up Display: Raises your optic to clear facial obstructions, allowing you to aim naturally and passively through night-vision tubes or gas-mask visors.
• Extended 4.5-Inch Rail: Provides ample space to mount a primary holographic sight alongside a magnifier or forward-mounted laser, maximizing real estate on PDWs and short-barreled rifles.
• Aerospace-Grade Construction: Machined from 7075-T6 aluminum with a Nitrite-coated steel clamp to maintain a strict zero under heavy recoil and harsh tactical environments.
• Direct-to-Rail Compatibility: Securely fits popular mailbox-pattern optics like the Eotech EXPS, Vortex UH-1, and Leupold LCO without the need for additional bulky adapters.

Specifications

What’s in the DOT Delta Optic Riser Mount’s box?

(1) Fully assembled Delta Optic Riser Mount (includes the integrated Nitrite-coated steel clamp and two-bolt hardware). 

DOT Delta Optic Riser Mount FAQs

What optic height does the mount provide?

It raises your red dot to an optical centerline between 2.26 and 2.33 inches, depending on which exact sight you use.

Is the Delta Optic Riser Mount suitable for passive aiming with night vision devices?

It is specifically built for this. The extra height lets you look through your night vision tubes without the rifle stock getting in the way.

Can I use this mount while wearing a gas mask or hearing protection?

You can easily aim with a gas mask on. The riser gives you enough space so that the facial hoses and filters do not block your view.

What material is the Delta Optic Riser Mount made from?

The main body is cut from strong 7075-T6 aluminum. It also uses a Nitrite-coated steel clamp to grip the rail tightly.

How long is the mounting rail?

The top rail is exactly 4.5 inches long.

Can I mount both a red dot sight and a magnifier on the riser?

You have plenty of room to fit a primary red dot sight and a magnifier right behind it on the same rail.

Is the Delta Optic Riser Mount compatible with laser aiming devices? 

You can place a laser system at the front of the rail, with your red dot behind it. This keeps both devices closely aligned, improving accuracy.

Is this mount suitable for SBRs and compact rifle platforms? 

It is perfect for short-barreled rifles and personal defense weapons. It gives you extra rail space when your handguard is too short.

Does the mount include mounting hardware?

It comes fully assembled with the steel clamp and the two bolts needed to attach it to your rifle.

Where can I purchase the Delta Optic Riser Mount? 

If you are looking to find a Delta Optic Riser Mount for sale, you can order yours directly from Atomic Defense. We are an Authorized Distributor for this mount, and our team offers expert customer service to answer your questions and help you finish your rifle build.