Recoil Reducing Buffer Adaptor for H&K Rifle Compatibility
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Solution Overview
Problem
H&K-style rifles experience significant recoil due to large, heavy bolts, leading to shooter fatigue, reduced accuracy, and discomfort, with existing recoil reduction methods either ineffective, cumbersome, or requiring custom gunsmithing, and lacking compatibility with AR-style rifle stocks and accessories.
Innovation Solution
A prefabricated, lightweight recoil reducing buffer and stock adaptor that allows H&K-style rifles to use a larger H&K-style buffer within an AR-15/M16 buffer tube, making them compatible with AR-style stocks and accessories, thereby reducing felt and perceived recoil and improving shooter control and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If lead wedges or heavy objects are inserted into the buttstock to reduce recoil, then felt and perceived recoil are reduced, but the firearm becomes unnecessarily heavy causing shooter fatigue
Solution Approach 1:
The invention extracts the recoil reduction function from the buttstock and relocates it to the buffer system. By removing the need for heavy inserts in the stock and concentrating the mass in the buffer tube area, the design reduces overall firearm weight while maintaining recoil mitigation effectiveness.
Solution Approach 2:
The buffer tube acts as an intermediary component that houses the buffer and spring assembly, serving as the mediator between the bolt carrier group and the stock. This intermediary system provides recoil reduction without requiring direct modification of the stock structure or addition of heavy materials.
2Ease of operation
If simple recoil pads are used to reduce perceived recoil, then shooter comfort is improved, but they are not as effective as advanced recoil reducing systems and do not allow storage compartments
Solution Approach 1:
The invention employs a spring-based pneumatic system within the buffer tube that compresses during recoil and expands to return the bolt carrier group to battery. This spring mechanism provides progressive, controlled recoil reduction that is more effective than simple pads while maintaining a sleek profile that accommodates stock design requirements.
3Reliability
If custom gunsmithing is performed to install advanced recoil reducing systems, then recoil reduction effectiveness is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The buffer tube and adaptor assembly is designed with universal compatibility across multiple H&K rifle platforms. The standardized interface and dimensions allow the same buffer tube design to be installed on different H&K rifle models without requiring custom machining or platform-specific modifications, achieving advanced recoil reduction through a universal solution.
4Reliability
If H&K-style rifles use their original buffer assemblies, then the firearm functions as designed, but they are incompatible with AR-style stocks and accessories
Solution Approach 1:
The invention creates a buffer tube design that copies the external dimensions, threading, and overall geometry of standard AR-15/M16 buffer tubes. This dimensional copying allows H&K rifles to accept AR-style stocks and accessories while the internal buffer assembly maintains compatibility with H&K's bolt carrier group, achieving cross-platform interoperability.
5Adaptability or versatility
If AR-style buffer tubes are directly installed on H&K rifles, then compatibility with AR-style stocks is improved, but the buffer assembly becomes incompatible with H&K-style rifles
Solution Approach 1:
The solution segments the buffer system into two distinct components: an AR-compatible buffer tube exterior and an H&K-compatible buffer interior. The buffer tube serves as the outer shell with AR-style threading and dimensions, while the buffer itself is sized and shaped to work with H&K's bolt carrier group, allowing each component to fulfill its specific compatibility requirement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces recoil and user fatigue, enhances accuracy, and allows H&K-style rifles to use a wider range of stocks and accessories, addressing the compatibility issues with AR-style systems without the need for custom gunsmithing.
Implementation Method 1
The buffer tube contains a buffer spring that compresses during recoil to absorb and dissipate energy
Implementation Method 2
The buffer spring compresses during recoil to absorb and dissipate energy, reducing the impact force transmitted to the shooter
Data Source
AI summary
A recoil reducing buffer and stock adaptor having a front portion adapted to fit into and connectively engage with the backplate of an H&K-style rifle and a rear portion comprising an aperture adapted to accept and connectively engage with an AR-15/M16 buffer tube. The adaptor attaches to an H&K-style rifle between the action or receiver and the buttstock and allows the rifle to accept and function with a larger and/or stronger H&K-style rifle buffer than its original factory-installed buffer. The adaptor reduces the recoil of an H&K-style rifle by allowing the rifle to function with a larger and/or stronger H&K-style recoil buffer than its original factory-installed buffer. The adaptor also makes substantially all existing H&K-style rifles compatible with substantially all current and existing H&K-style rifle stocks and AR-style rifle stocks and stock accessories.