Universal Red Dot Piggyback Scope Mount Systems
Bridge the gap between extended long-range magnification and rapid close-quarters target acquisition. EGW’s Universal Red Dot Piggyback Systems allow you to clamp a secondary miniature reflex sight directly onto your primary rifle scope tube. Precision CNC-machined in the USA, our modular ring-cap clamping blocks provide a rock-solid, zero-shifting secondary optics platform under heavy live fire. Explore our tube systems and modular footprint adapter plates below.
Modular CNC-machined split-ring assemblies cut to precise interior radius tolerances to prevent main scope tube crushing. Pair with interchangeable footprint adapter plates for total optics flexibility.
The Logic of Modular Secondary Optics Layouts
High-power magnified optics are essential for precise downrange shot placement, but they severely limit your field of view at close distances. Running a secondary red dot sight "piggybacked" at the 12 o'clock position on your main scope tube allows you to instantly transition between targets simply by changing your cheek weld height.
Unlike low-profile rings that require a proprietary configuration, EGW’s system uses a universal, low-profile split-ring block that clamps securely around the main scope tube body. This modular design lets you swap out individual top adapter plates whenever you decide to upgrade or change your red dot optic footprint.
Video Guide: Mounting Red Dots on Scopes with EGW Rings
Watch Al walk through the compatibility options, custom offset clocking capabilities, and our modular ring-top configurations.
Shop Our Complete Piggyback System & Plate Catalog
Universal Tube Clamping Mounts
Heavy-duty split ring assemblies built to wrap securely around standard main scope tubes without crushing the housing wall.
Interchangeable Footprint Adapter Plates
Dedicated top adapter plates engineered to mount flush to our universal tube rings, matching specific micro red dot footprints.
Added Value Hardware Upgrade: Already Running EGW Keystone Rings? If your rifle is currently outfitted with our premium Keystone Rings (available in 1", 30mm, or 34mm diameters), you do not need to purchase a full secondary tube clamp system! You can buy our specialized standalone matching top ring caps independently to directly adapt your existing rings into a modular piggyback platform system.
Engineered Performance: Why EGW Tactical Components Hold Zero
Secondary optics mounted high on a rifle scope are subjected to harsh linear G-forces and rotational inertia during live-fire sequences. Our design cuts no corners:
- 6061 T6 Aircraft Grade Aluminum: Precision CNC-machined from solid domestic bar stock billet inside our Quakertown, PA shop to achieve optimum strength-to-weight metrics without shifting scope balance.
- Precision Radius Interior Cuts: Interior mating surfaces are cut to a precise radius to provide uniform clamping tension around your scope tube. This holds the system entirely immobile under heavy recoil without marking or denting your main scope housing.
- Custom Clamping Orientation angles: Because our tube bands feature symmetric split radius interfaces, you aren't trapped into mounting your red dot straight vertically at 12 o'clock. Loosen the ring screws slightly to offset dock your optic at a 45-degree, 60-degree, or custom cant layout to maximize dynamic transition positioning.
Piggyback Mounting Systems: Frequently Asked Questions
What installation torque specification should be applied to tube mounts?
We strictly recommend using a calibrated inch-pound wrench to torque the split-ring cross screws around your primary scope tube to a maximum of 15 to 18 inch-pounds. Always verify your main scope manufacturer's recommended ring cap torque ratings before final assembly to prevent crushing or binding internal erector tracking tube components.
Can I mount a Holosun 407c / 507c optic onto the EGW RMR Piggyback Plate?
Yes. The Holosun 407c, 507c, and 508t optics share a native, identical mounting footprint configuration with the Trijicon RMR. Our universal piggyback RMR adapter plate features the exact alignment pin arrays and hole indexing layout necessary to bolt these popular Holosun reflex sights flush to the ring platform without alignment shifts.
Will this system work on main scopes built with a 34mm main tube?
Yes. While our standard standalone clamping ring bases fit standard 1-inch or 30mm diameter main scopes, our Keystone replacement ring top accessories actively support heavy 34mm target scope tubes. If you run a premium 34mm long-range tactical scope inside a set of EGW Keystone rings, you can swap your factory top cap out for our dedicated 34mm piggyback upgrade ring hardware smoothly.