Attachment device for firearms to manage recoil

A spring-damper-mass system for handguns, integrated via common mounts, addresses the inadequacy of existing systems by reducing recoil force peaks, enhancing handling and accuracy.

DE202025002705U1Active Publication Date: 2026-01-08FETT MICHEL
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Patent Information

Application Number
DE202025002705
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-09-15
Publication Date
2026-01-08
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

Existing recoil compensation systems for handguns are inadequate, requiring structural modifications and failing to effectively manage recoil in small and lightweight firearms.

Method used

A spring-damper-mass system integrated via a common mounting system like Picatinny, Weaver, or M-LOK, which includes a flywheel and damping mechanism to mitigate recoil forces without altering the handgun's structure.

Benefits of technology

The system reduces recoil force peaks, improving handling and accuracy during rapid fire by distributing momentum over a longer period.

✦ Generated by Eureka AI based on patent content.

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Abstract

Attachment component for the mounting rail (2) of a handgun (1), characterized in that it has a spring system (6), a damping system (7) and a flywheel (8) in a housing (4), wherein the housing (4) can be attached to a standardized mounting rail (2) of the handgun (1) via a mounting rail adapter (3) without modification of the weapon.
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Description

[0001] When a handgun is fired, the recoil generates a force acting on both the weapon and the shooter, causing the weapon to move away from the intended target, primarily vertically but also horizontally. This effect depends, among other things, on the energy of the ammunition used and the mass of the weapon.

[0002] The greater the deflection of the weapon, the longer it takes a shooter to realign it. In rapid fire, this negatively impacts both the achievable rate of fire and accuracy.

[0003] Prior art includes spring-damper systems designed to dampen recoil. These are preferably integrated into the buttstock of a long gun. Examples include patents US 3346985 A, WO 2009 / 156814 A1, US 9970722 B1, US 3381405 A, and US 9080823 B1. Less frequently, prior art includes designs in which the spring-damper system is integrated into the fore-end of a long gun; see US 8429845 B1 and US 4156979 A. Furthermore, inventions exist that utilize a spring system in a foregrip that is axially displaceable on the fore-end of a long gun to compensate for recoil (US 7340857 B1). Similarly, solutions exist that incorporate a spring system between the firearm and, for example, a bipod (US 9021728 B1). A disadvantage of this prior art is that it can only be used with firearms explicitly designed for this purpose, specifically long guns.Often, more or less significant design modifications are necessary. Flexible retrofitting of handguns is not provided for.

[0004] Patent US 11946713 B2 describes a device attached to the barrel consisting of an inertial weight and a spring. A disadvantage of this invention is that it does not disclose a separate damping element, which can lead to unwanted vibrations. Furthermore, the arrangement on the barrel largely limits its application to long guns.

[0005] Weights (also known as frame weights) exist as attachments suitable for handguns as well. These can be mounted on rails, increasing inertia and making recoil more manageable. The disadvantage is that the effectiveness increases proportionally with the weapon's weight, which restricts handling when not firing.

[0006] Further examples of prior art include vibration-damping mounting rails designed to protect accessories such as optics (US 9267753 B2 / US 6678988 B1), as well as barrel tuners that modify the harmonic vibrations of the weapon's barrel to improve accuracy (US 5860242 A). Patent US 7055276 B2 describes harmonic dampers made of elastomer and weights for damping weapon vibrations. None of these systems directly reduces recoil.

[0007] The invention therefore addresses the problem that small and lightweight handguns, especially handguns, can exhibit significant recoil. Systems that compensate for or reduce recoil are not satisfactory for this type of handgun.

[0008] This problem is solved by the features listed in claim 1.

[0009] The invention comprises an attachment device for handguns, which can be mounted on a handgun via a common mounting system such as Picatinny, Weaver, or M-LOK and acts as a damper by means of a spring-damper-mass system, making recoil more manageable. The invention is characterized by its flexible retrofit capability without structural modifications and addresses the strong recoil of handguns and light long guns in particular, which is caused by a lack of mass.

[0010] Details of the invention will be explained below with reference to the information in the Fig. 1, Fig. 2 to Fig. The three illustrated embodiments of the invention will be explained in more detail below. They show: Fig. 1. A variant design with several dedicated spring elements and damper elements, as well as a flywheel in isometric view, Fig. 2 a variant design with several dedicated spring elements and damper elements, as well as a flywheel in side view, Fig. 3 a variant design with several dedicated spring elements and an integrated damper-mass system in side view.

[0011] The mounting device is attached to a handgun (1), specifically to its mounting rail (2). For this purpose, the mounting device has a mounting rail adapter (3). The mounting rail adapter (3) is connected to the housing (4) of the mounting device. The housing (4) can be closed with an optional housing cover (5). Inside the housing are a spring system (6), a damping system (7), and a flywheel (8). The flywheel (8) is coupled to the housing (4) via the spring system (6) and the damping system (7).

[0012] When the handgun (1) is fired, an impulse opposite to the direction of fire acts on the handgun (1), which is partially transmitted to the housing (4) of the mounting device via the mounting rail (2) and the mounting rail adapter (3).

[0013] The flywheel (8) inherent in the attachment device initially remains at rest for an incremental period due to its inertia. A spatial offset arises between the flywheel (8) and the housing (4).

[0014] The spatial offset and its temporal change result in constraint forces in the spring system (6) and the damper system (7), which act on the flywheel (8) and on the housing (4). The force acting on the housing (4) opposes the impulse caused by the shot and acting on the handgun (1) and is transmitted to it via the mounting rail (2) and mounting rail adapter (3).

[0015] According to the law of conservation of momentum, the invention cannot reduce the momentum generated when the handgun (1) is fired. Instead, it reduces the force peaks resulting from the momentum and distributes them over a longer, more manageable period. This improves the handling of the weapon when firing.

[0016] The spring system (6), the damper system (7) and / or the flywheel (8) can each consist of one or more components arranged in parallel and / or in series. The spring system (6) and / or the damper system (7) can be directly coupled to the housing (4) or indirectly via its housing cover (5).

[0017] Fig. 1 and Fig. Figure 2 shows an embodiment of the invention with a spring system (6) consisting of two parallel, dedicated spring elements and a damper system (7) consisting of two parallel, dedicated damper elements, which are attached to a dedicated flywheel (8). Each spring element (6) and damper element (7) is arranged coaxially with respect to each other. Embodiments with more or fewer than two spring elements (6) or damper elements (7) are conceivable. The flywheel (8) is guided linearly within the housing (4).

[0018] Fig.Figure 3 shows an embodiment of the invention with a spring system (6) consisting of two series, dedicated spring elements and a flywheel (8) which acts as part of the damper system (7). By introducing a suitable liquid or gas into the housing (4), viscous damping is created between the flywheel (8), which is designed for this purpose, and the housing (4). Alternatively or additionally, mechanical damping can be achieved through Coulomb friction between the flywheel (8) and the housing (4). Reference sign 1 handgun 2 Mounting rail 3 mounting rail adapters 4 cases 5 Housing covers 6 spring system 7 Damper system 8 Flywheel QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] US 3346985 A

[0003] WO 2009 / 156814 A1

[0003] US 9970722 B1

[0003] US 3381405 A

[0003] US 9080823 B1

[0003] US 8429845 B1

[0003] US 4156979

[0003] US 7340857 B1

[0003] US 9021728 B1

[0003] US 11946713 B2

[0004] US 9267753 B2

[0006] US 6678988 B1

[0006] US 5860242 A

[0006] US 7055276 B2

[0006]

Claims

[1] Attachment for the mounting rail (2) of a handgun (1), characterized by , that it comprises a spring system (6), a damping system (7) and a flywheel (8) in a housing (4), wherein the housing (4) can be attached to a standardized mounting rail (2) of the handgun (1) via a mounting rail adapter (3) without weapon-side modification. [2] Attachment part according to the preceding claim 1, characterized by , that the housing (4) has an openable housing cover (5). [3] Attachment according to any one of the preceding claims, characterized by , that the flywheel (8) is guided linearly movably within the housing (4) relative to the housing. [4] Attachment according to any one of the preceding claims, characterized by , that the spring system (6) consists of several spring elements arranged in parallel or in series. [5] Attachment according to any one of the preceding claims, characterized by, that the damping system (7) consists of several damping elements arranged in parallel or in series. [6] Attachment according to any one of the preceding claims, characterized by , that the spring system (6) and / or the damper system (7) is attached to the flywheel (8) and exerts force there. [7] Attachment according to any one of the preceding claims, characterized by , that the spring system (6) and / or the damper system (7) is attached to the housing (4) and / or housing cover (5) and exerts force there. [8] Attachment according to any one of the preceding claims, characterized by , that the spring system (6) and / or the damping system (7) and / or the flywheel (8) consists of dedicated and functionally separate components. [9] Attachment according to any one of the preceding claims, characterized by , that the flywheel (8) is a functional component of the damping system (7). [10] Attachment according to any one of the preceding claims, characterized by, that the damping system (7) utilizes the viscous damping effect of liquid or gas. [11] Attachment according to any one of the preceding claims, characterized by , that the damping system (7) utilizes mechanical damping action from coulombic friction or material damping.

Citation Information

Patent Citations

  • Recoil management system for a gun

    US11946713B2

  • Recoil absorbing means for firearms

    US3346985A

  • Firearm recoil reducer

    US3381405A

  • Gun recoil damper

    US4156979A

  • Removable harmonic tuning system for firearms

    US5860242A