Will this mount fit the Holosun 507C or 508T?

Yes, this mount is compatible with all optics that use the Trijicon RMR footprint, including Holosun 507C, 508T, and others.

Can I use this mount on an AR-15?

Yes, we offer RMR mounts specifically designed for standard 1913 Picatinny rails on AR-15 platforms, with co-witness and QD options.

Is there a quick-detach option available?

Yes, we carry RMR QD mounts from brands like American Defense and Midwest Industries for fast removal and zero retention.

What’s the difference between absolute and lower 1/3 co-witness?

Absolute co-witness aligns the optic with iron sights directly in the center, while lower 1/3 places the irons in the bottom third of the sight window.

Trijicon RMR Mount – Red Dot Mounts for AR-15, Pistols & Shotguns

RMR Picatinny Mount

RMR Offset Mount

RMR Dovetail Mount

RMR Mount Adapter Plates

RMR AR Mount

**Reptilia DOT Mount – 1.93″ Height for Trijicon® RMR/SRO & Holosun® 507/508 – Black** $98.96

**EGW Trijicon RMR And Holosun 407/507C To Picatinny Adapter** $66.49

**American Defense RMR Lw QD Mount Low Lh** $104.57

**Trijicon RM34: Picatinny Rail Mount Adapter for RMR/SRO** $117.60

**Mesa SureShell Carrier With Reflex Mount for Benelli M4 and Trijicon RMR - 4-Shell, 5½ inm Aluminum** $142.43

**Reptilia DOT Mount for Trijicon® RMR/SRO & Holosun® 507/508 – 1.93″ Height – FDE** $98.96

**American Defense RMR Lw QD Mount Nv 2.33** $115.86

**Midwest Industries Trij RMR Lower 1/3 QD Mount** $105.00

**Midwest Industries Trij RMR Co-witness QD Mount** $105.00

**American Defense RMR Lw QD Mount Low Rh** $104.57

**American Defense Trijicon RMR Qr Mount Co-witnss** $121.92

**Trijicon RM33: Low Picatinny Rail Mount for RMR/SRO** $88.85

**PRI Trijicon RMR 45 Degree Mount** $66.00

**Mesa Reflex Sight Mount for Benelli M4 and Trijicon RMR** $67.80

**Mesa Tactical SureShell Polymer Benelli M4 Side Saddle Shell Holder with RMR Mount (6-Shell, 12-GA)** $113.35

**Trijicon RM36: RMR Mount for 1.5x, 2x & 3x ACOG Models without bosses** $160.72

**Trijicon RM34W: Weaver Rail Mount Adapter for RMR®/SRO™ — Colt Thumb Screw** $117.60

**Trijicon RM61: RMR/SRO Quick Release Mount** $78.40

**Trijicon RM35: RMR Mount for 3.5x, 4x and 5.5x ACOG** $86.24

**Trijicon RM44: RMR®/SRO™ Pistol Mount for All Glock® Models (not including Glock® MOS slides).** $87.55

**Mesa Tactical SureShell Benelli M4 Side Saddle Shell Holder with RMR Mount - Aluminum (6-Shell, 12-G** $142.43

**Trijicon RM45: RMR Pistol Mount for Smith & Wesson M&P** $87.55

**Trijicon RMR/SRO 45° Rail Offset Adapter - AC32066** $86.24

**A.R.M.S. #76-OS Trijicon RMR Offset Mount** $180.00

Trijicon RMR Mount – Rugged Precision Mounts for Red Dot Optics

Name: Trijicon RMR Mount
Brand: Trijicon
SKU: TRIJICON-RMR-MOUNT
Price: 74.95 USD
Availability: InStock

When you invest in a Trijicon RMR, the last thing you want is a weak link in your setup. The Trijicon RMR Mount is more than just a base — it’s the foundation that holds your optic tight under recoil, environmental pressure, and high-speed use. Whether you're outfitting an AR-15, shotgun, or tactical pistol, a reliable mount is essential for maintaining zero and maximizing performance.

At Mounts Plus, we carry a wide selection of RMR mounts built for duty, defense, and competition — all precision-machined, battle-tested, and compatible with both rifles and handguns.

Compatible with RMR and Holosun Red Dots

These mounts are designed for any optic sharing the Trijicon RMR footprint, including:

Trijicon RMR & SRO
Holosun 507C, 508T
Riton, Swampfox, and other compatible red dots

Whether you’re mounting to a Picatinny rail, offset position, shotgun receiver, or pistol slide, you’ll find a fit that locks up solid.

Mount Types for Every Mission

🔹 RMR Picatinny Mounts

Ideal for AR-15 platforms, these mounts give you stability on any 1913 rail. Choose from standard, QD, and co-witness heights depending on your optic and iron sight setup.

🔹 RMR Offset Mounts

Need to run your RMR as a secondary optic? Offset mounts place your sight at 45 degrees for fast transitions from LPVO or magnified optics.

🔹 RMR Dovetail Mounts

Perfect for handguns with standard dovetail slots — these mounts eliminate the need for slide milling, making them great for Glock, SIG, and more.

🔹 Co-Witness RMR Mounts

For shooters running BUIS (backup iron sights), our co-witness mounts provide both absolute and lower 1/3 heights, ensuring redundancy without obstruction.

Why Shooters Trust These RMR Mounts

Made from high-strength 7075-T6 or 6061 aluminum
Hardcoat anodized for long-term durability
Secure lock-up under heavy recoil
Tool-free QD versions available for fast optic changes
Lightweight profiles that don’t add bulk

Every mount is tested to maintain zero through thousands of rounds — on rifles, shotguns, and duty pistols alike.

Trusted Brands We Carry

American Defense MFG – QD locking systems with return-to-zero
Midwest Industries – Proven co-witness options with clean finishes
Reptilia DOT Mount – Ultra-precise fit for sleek rifle builds
Mesa Tactical – RMR mounts integrated with Benelli and Remington shotguns
PRI & UM Tactical – 45-degree offsets and multi-platform support

Find the Right RMR Mount for Your Build

Not all mounts are created equal. Whether you're building a home defense rifle, a competition pistol, or a duty-ready AR, you need the right footprint, height, and locking system. Use our filters to narrow down your platform and optic, or contact our team — we're happy to guide you to the best choice for your firearm.

Elevate Your Setup with the Right RMR Mount

If you're serious about speed, precision, and consistency, don’t settle for a weak mount. Our Trijicon RMR Mount selection gives you the tools to lock in your red dot, hold zero under pressure, and shoot with confidence every time you squeeze the trigger.

Available now at Mounts Plus — in stock and ready to ship.

Trijicon RMR Mount – Red Dot Mounts for AR-15, Pistols & Shotguns