Upgrade your Sig Sauer Cross Magnum Sawtooth .300 WM (3.850″) ASR magazine with the KMRNL ASR Magazine Brace, a patent-pending innovation designed to enhance stability, modularity, and reliability in precision shooting.
Key Features:
✅ Seamless Integration – Directly replaces the factory magazine baseplate, sliding into place effortlessly while retaining the factory internals.
✅ Optimized Stability – Maintains a vertical magazine position, ensuring a flush fit with the receiver for bracing against surfaces without interference.
✅ Enhanced Feeding Reliability – Designed to eliminate misfeeds by ensuring proper alignment during cycling.
✅ M-LOK Style Mounting – Features M-LOK style slots for attaching accessories such as lights, lasers, or tactical enhancements like two round holders.
✅ Built-In Arca Rail – Engineered for tripod and stabilizer compatibility, offering improved precision shooting performance.
✅ Removable Back Panel – Secured by a screw, allowing quick removal for easy magazine insertion and removal.
✅ Rugged Glass filled polymer Housing – Built with durability in mind, ensuring long-lasting performance in the harshest environments.
Designed for:
🔹 Precision shooters needing tripod or bipod mounting options.
🔹 Hunters and tactical operators requiring a stable, interference-free shooting position.
🔹 Long-range marksmen seeking reliable feeding and magazine retention.
Easy Installation: PDF ASR instructions
- Remove the factory baseplate from the ASR magazine.
- Detach the back panel on the KMRNL ASR Magazine Brace)
- Slide the KMRNL ASR Magazine Brace into place.
- before inserting the magazine, ensuring proper alignment.
- Reattach the back panel, ensuring a tight, flush fit with your receiver.
The Sig Sauer Cross Magnum Sawtooth is a state-of-the-art bolt-action rifle designed for precision shooting and modular performance. At KMRNL, we fully respect and acknowledge all patents, trademarks, and intellectual property rights associated with the Sig Sauer Cross rifle, its factory ASR magazine, and third-party components such as those from Accurate-Mag. Our products are designed to complement, not replace, the proprietary engineering of these industry leaders.
Our KMRNL ASR Magazine Brace is a patent-pending, independently developed accessory that enhances stability, modularity, and reliability while seamlessly integrating with the existing Sig Sauer ASR magazine. This product does not alter or infringe upon the proprietary designs, functions, or mechanisms of the Sig Sauer Cross platform, factory ASR magazine, or any Accurate-Mag components.
Clarification of Design Compliance:
- No Internal Modification – The brace replaces only the factory baseplate of the Accurate-Mag ASR magazine, while maintaining the original magazine body, spring, follower, and feed geometry to ensure proper function.
- No Structural Alteration – The KMRNL ASR Magazine Brace slides on in place of the baseplate without requiring permanent modifications. The magazine remains fully reversible to its original state if the user chooses.
- Accessory, Not an Overhaul – Much like a bipod, scope, or stock modification, this product enhances usability without modifying the core firearm action or feeding mechanism.
- Independent Engineering – The KMRNL ASR Magazine Brace is an original, patent-pending design that does not copy, duplicate, or infringe upon proprietary engineering from Sig Sauer or Accurate-Mag. It provides an alternative baseplate solution that enhances functionality while preserving the integrity of the original firearm system.
KMRNL is committed to innovation, quality, and ensuring that all our products comply with applicable intellectual property protections while delivering high-performance shooting accessories.
For more information, visit Sig Sauer Cross Magnum Sawtooth and Accurate-Mag.







































