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A red dot sight needs the right mounting system to stay secure, align correctly, and match your firearm setup. Whether you are working with an AR-15, pistol, shotgun, AK, PCC, hunting rifle, or competition-style build, choosing the correct mount helps ensure your optic fits the firearm, rail, slide, or adapter plate properly.
Mounts Plus carries optic mounts, adapter plates, dovetail mounts, risers, quick-detach mounts, offset mounts, and firearm-specific optic bases for many popular red dot and reflex sight setups. Before ordering, confirm your firearm model, optic footprint, rail type, mount height, and included hardware.
Red Dot Mounts for Rifles, Pistols & Shotguns | Co-Witness & QD Options
Fitment and Compatibility Checklist
Mount compatibility should never be assumed from the optic name alone. Use this checklist before checkout.
- Firearm make and model: Confirm the exact pistol, rifle, shotgun, or platform.
- Rail or slide setup: Check whether your firearm uses Picatinny, Weaver, dovetail, MOS, CORE, direct mount, or another optic system.
- Optic footprint: Match the mount to the sight’s specific mounting pattern.
- Mount height: Choose standard, absolute co-witness, lower 1/3 co-witness, low, high, or specialty height as needed.
- Attachment type: Compare fixed, quick-detach, cross-bolt, thumb screw, and adapter plate options.
- Hardware: Review included screws, plates, spacers, and product notes.
- Fitment support: Some pistol dovetail or model-specific mounts may require fitting by a qualified professional.
Shop Optic Mounts by Firearm and Sight Type
Mounts Plus offers mounting solutions for AR-15 rifles, AK-pattern rifles, pistols, shotguns, PCCs, 1911 pistols, Glock models, Smith & Wesson M&P pistols, Ruger firearms, Springfield Armory pistols, Kimber models, Sig Sauer pistols, and many other platforms.
Popular mount types may include RMR mounts, Holosun-compatible plates, Aimpoint Micro mounts, Trijicon MRO mounts, Vortex Venom and Viper mounts, Burris FastFire mounts, Docter footprint adapters, Shield RMSc plates, dovetail mounts, 45-degree offset mounts, and QD optic mounts.
Use the product listings below to compare brand, price, firearm fitment, optic footprint, mount height, release type, and included hardware.
Common Mount Types
Pistol Dovetail and Adapter Plate Mounts
Pistol mounts are often designed around a specific slide cut, rear sight dovetail, or optics-ready plate system. Always confirm firearm model, sight cut, optic footprint, and screw compatibility before ordering.
AR-15 and Rifle Optic Mounts
Rifle mounts commonly attach to Picatinny rails and are available in different heights for co-witness, lower 1/3 co-witness, magnifier alignment, or specialty optic setups.
Shotgun and AK Optic Mounts
Shotgun and AK platforms often require firearm-specific bases or receiver-mounted systems. Check product fitment notes carefully because compatibility can vary by model and receiver style.
Offset Optic Mounts
Offset mounts can position a compact reflex sight beside a magnified optic. They are commonly chosen by shoppers building rifle setups that combine a primary optic with a secondary sighting option.
Quick-Detach Mounts
QD mounts are designed for faster optic removal and reattachment. Compare lever design, return-to-zero claims, mount height, optic footprint, and rail compatibility before choosing one.
Trusted Optic Mount Brands
Mounts Plus carries optic mounting options from trusted manufacturers such as EGW, BOBRO, Texas Weapon Systems, Samson Manufacturing, ZRODelta, UM Tactical, and other respected mount brands. Product availability may vary, so review each listing for fitment, materials, finish, and included hardware.
Why Buy from Mounts Plus?
Mounts Plus specializes in scope mounts, optic mounts, rings, bases, red dot sights, and firearm accessories. This category is designed to help shoppers compare mounting solutions by firearm platform, optic footprint, mount height, brand, and attachment style.
Browse the available mounts below, check product details carefully, and choose the optic mounting solution that fits your firearm and red dot sight.
Fitment Reminder:
Red dot mount compatibility depends on your firearm model, optic footprint, rail or slide cut, mount height, and included hardware. Confirm fitment before ordering.
Red Dot Mount FAQs
How do I know which red dot mount I need?
Start by confirming your firearm model, rail or slide setup, and optic footprint. Then choose a mount that matches your firearm platform, optic pattern, and preferred sight height.
Do red dot mounts fit all optics?
No. Mounts are usually footprint-specific. A mount for an Aimpoint Micro optic will not usually fit a Trijicon RMR, Holosun 507K, Vortex Venom, or Shield RMSc unless the product is specifically designed for that footprint.
What is the difference between absolute co-witness and lower 1/3 co-witness?
Absolute co-witness places the red dot close to the same sight line as standard-height backup sights. Lower 1/3 co-witness places the optic slightly higher, leaving the backup sights lower in the viewing window.
Do I need a quick-detach mount?
A quick-detach mount is useful if you want to remove or swap an optic more easily. A fixed mount may be better if you want a simple, secure, lightweight setup and do not plan to remove the optic often.
Can I mount a red dot on a pistol without milling the slide?
Some pistols can use rear-sight dovetail mounts or adapter plates, depending on the firearm model and optic. Always confirm the specific sight cut, optic footprint, and product fitment notes before ordering.
What mount works for an AR-15 red dot?
Many AR-15 red dot setups use Picatinny-compatible mounts. The right choice depends on the optic footprint, mount height, backup sight preference, and whether you want a fixed, QD, riser, or offset mount.
Are RMR and Holosun mounts the same?
Some Holosun models, such as many 407C, 507C, and 508T optics, use an RMR-style footprint. Other Holosun models, such as 407K, 507K, EPS, EPS Carry, 509T, AEMS, and rifle optics, may use different mounting patterns. Always check the exact model.
What should I check before buying an optic mount?
Confirm the firearm model, optic footprint, rail or slide cut, mount height, attachment system, included hardware, and whether the manufacturer recommends professional fitting.
Where can I buy red dot mounts?
You can shop red dot mounts, optic plates, dovetail mounts, risers, offset mounts, and QD mounting solutions on this Mounts Plus category page.