US20260055993A1
2026-02-26
19/306,115
2025-08-21
Smart Summary: A new mount helps attach aiming devices, like red dot sights, to firearms. It has a special design that keeps the view clear between the main sight and the gun. This means you can use a second aiming device without blocking the view from the first one. The mount is made to work well with both devices at the same time. Overall, it improves aiming accuracy by allowing multiple sights to be used together. 🚀 TL;DR
A specialized mount for firearm aiming devices that attaches an optic, such as a red dot sight, to a firearm. The mount includes a hollow optical passage feature to maintain an essentially unobstructed optical line of sight between the primary aiming device and the top of the firearm. This allows an independently mounted, secondary aiming device to be used relative to the primary optic without obstructive interference.
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F41G11/003 » CPC main
Means for mounting tubular or beam shaped sighting or aiming devices on firearms Mountings with a dove tail element, e.g. "Picatinny rail systems"
The present invention relates to firearm accessories, specifically to mounts for attaching aiming devices to firearms.
Traditional mounts for firearm aiming devices (otherwise referred to optics, sights or scopes) often obstruct the user's line of sight between the mounted optic and the firearm, limiting the compatibility and usability with additional mounted aiming devices. There are often instances when it is advantageous to have two or more sights mounted on the same firearm with different purposes such as different magnifications or points of impact. To mitigate the aforementioned obstructive interference problem, some have attempted to create systems that allow users to affix a secondary optic directly to the primary optic or its mount. Others have developed apparatuses that enable users to temporarily adjust or move a secondary optic or magnification aid in and out of the primary optic's line of sight. However, there is a significant need for a device that allows users to independently mount a primary optic to a firearm, enabling simultaneous use of a secondary optic without significant obstructive interference, dependent mechanical linkages, or the need for moving parts.
The invention is a specialized mount for firearm aiming devices that attaches an optic, such as a red dot sight, to the top section of a firearm. The mount is designed with a deliberate hollow optical passage feature to maintain an unobstructed optical line of sight between the primary aiming device and the top of the firearm. This allows an independently mounted, secondary aiming device to be used below and behind, or in front of, the primary optic without obstructive interference. The innovative design eliminates the need for moving parts or direct mechanical linkages between optics affording a streamlined and efficient solution for operators requiring multiple aiming options.
The attached images illustrate one example embodiment of the invention. All figures are approximations and are not drawn to scale.
FIG. 1 is a detailed view of the example embodiment showcasing the mount's major composing features, including the frame walls (101), optical passage (102), primary optic interface (103), and rail mounting interface section (104).
FIG. 2 is a detailed view of the mount (100) embodied in FIG. 1 attached to a primary red dot sight (200) and firearm rail section (300) with an example magnified scope (400) positioned behind it for compatible secondary optic use.
FIG. 3 is another detailed view from a more rearward perspective of the same configuration as described in FIG. 2.
FIG. 4 is a side vie (sectional) highlighting a suer (U) using the primary optic (200) equipped to a firearm (500) with the exemplified mount (100) embodiment as described in FIG. 2.
FIG. 5 depicts the same configuration described in FIG. 4, now with a user (U) who has shifted from primary optic (200) to secondary optic (400) after a minor adjustment to head position.
The optic mount comprises a robust, hollow frame designed to securely attach to the rail section of a firearm. The frame creates a large, central opening that provides an unobstructed optical passage below the primary optic. This opening allows for the simultaneous use of additional aiming systems without interference.
The mount is constructed from high-strength, lightweight materials such as steel, aluminum, metal alloys, or durable polymers, ensuring durability and minimal additional weight to the firearm. The mount is comprised of a base section that interfaces with the firearm's rail system (typically a Picatinny or Weaver rail), a top section that connects to the primary aiming device, and main body walls that create a hollow-framed design with adequate central opening (herein also referred to as an optical passage) to maintain a clear line of sight below the primary optic for secondary optics.
The top section of the device is designed to securely attach a primary optic, such as a red dot sight, using either a sight-specific mounting interface or a small segment of a standardized rail interface (e.g., Picatinny or Weaver rail). The design ensures the primary optic is held at a suitable height off the top of the firearm for secondary aiming device use.
The optical passage created by the mount's hollow frame design provides sufficient cross-sectional space below the primary optic to maintain a clear line of sight between the secondary aiming device and the target. For example, this feature is particularly beneficial for configurations where a secondary optic, such as magnified scope, is positioned behind the primary optic, enabling seamless transitions between near and far targets by simply adjusting user head position to employ the desired optic.
The mount facilitates compatibility between the primary optic and a variety of secondary aiming devices when placed either behind or in front of the primary optic. Examples include, but are not limited to: magnified scopes, sights preset to different points of impact to accommodate ballistic variances of different projectiles, night vision optics, thermal optics, laser aiming modules, and back up iron sights. This flexibility allows users to customize their firearm configuration with multiple aiming devices based on operational and individual needs without the need for moving parts or directly mounting one optic to another.
The invention supports the use of multiple aiming devices simultaneous by simply adjusting user head position slightly, enhancing aiming versatility and streamlining user experience.
The absence of moving parts eliminates the need for users to take a hand off the firearm to switch between optics while reducing system weight, potential points of failure and maintenance requirements.
The absence of a direct mechanical fixation between the primary optic and secondary aiming devices reduces functional dependences such that each optic can be independently removed (for servicing or other reasons) without compromising the integrity or point of aim of the other. Additionally, if desired based on varying operational needs, this device affords users the ability to swap out different secondary optics to be used with the same mounted primary optic.
1. A firearm optic mounting system comprising:
a hollow mounting frame having a central optical passage extending longitudinally therethrough, said central optical passage having a diameter sufficient to allow unobstructed light transmission;
a first optic mounting interface positioned at a first location on said hollow mounting frame for securing a first optical aiming device;
a second optic mounting interface positioned at a second location on said hollow mounting frame spatially displaced from said first location for securing a second optical aiming device;
a mounting interface configured to secure said hollow mounting frame to a firearm; and
wherein said hollow mounting frame is configured such that when said first optical aiming device comprises a magnification scope and said second optical aiming device comprises a red dot sight, an optical axis of said magnification scope passes through said central optical passage without obstruction from said second optical aiming device.
2. A modular firearm optic system comprising:
a movable mounting assembly configured to translate along a firearm rail in a forward and rearward direction;
a hollow support structure carried by said movable mounting assembly, said hollow support structure defining an internal optical channel;
a primary optic mount configured to secure a variable magnification scope having an objective lens and an ocular lens;
a secondary optic mount positioned to secure a non-magnifying optical sight; and
wherein said movable mounting assembly allows adjustment of eye relief distance by translating said variable magnification scope in one direction or another relative to a shooter's eye position while maintaining alignment of said variable magnification scope's optical axis with said internal optical channel.
3. A method of configuring multiple optical aiming devices on a firearm, comprising:
providing a hollow mounting frame having a central optical passage extending longitudinally therethrough;
mounting a first optical aiming device at a first location on said hollow mounting frame;
mounting a second optical aiming device at a second location on said hollow mounting frame, said second location spatially displaced from said first location;
securing said hollow mounting frame to a firearm;
aligning said first optical aiming device such that an optical axis thereof passes through said central optical passage; and
positioning said second optical aiming device such that it does not obstruct light transmission through said central optical passage when said first optical aiming device is in use.