KMRNL V4 Magnum Sidewinder for Sig Sauer Cross Magnum Sawtooth 300 PRC

The KMRNL V4 Magnum Sidewinder is a two-round cartridge holder designed specifically for the Sig Sauer Cross Magnum Sawtooth chambered in 300 PRC. It places spare rounds closer to the operator and near the ejection port for fast, controlled access while keeping a low profile on the rifle.

Key Benefits

• Platform-specific design — Engineered for the Sig Sauer Cross Magnum Sawtooth 300 PRC and its ARCA rail layout.
• Operator-side placement — Positions cartridges closer to the shooter and near the ejection port for efficient access.
• Low-profile V4 design — Holds two magnum cartridges securely without adding unnecessary bulk.
• Carbon fiber construction — Lightweight body with all steel hardware included.
• Total weight under 2 oz — Includes hardware.

Fitment & Compatibility

Rifle Platform: Sig Sauer Cross Magnum Sawtooth
Primary Cartridge: 300 PRC
Capacity: Two rounds
Material: Carbon fiber body with steel hardware
Weight: Under 2 oz with hardware

The V4 Magnum Sidewinder is designed to sit over the quick-release area above the factory ARCA rail. This placement is intentional for the Sawtooth chassis layout but will block access to that quick-release control. Review your rifle configuration before ordering if you regularly use that control.

This product is not a generic universal mount. It is purpose-built for the Cross Magnum Sawtooth 300 PRC.

Best For

Owners of the Sig Sauer Cross Magnum Sawtooth in 300 PRC who want two spare magnum cartridges positioned close to the operator with minimal added bulk.

Included

• One KMRNL V4 Magnum Sidewinder
• All required steel mounting hardware

Ammunition, firearm, and other accessories are not included.

Add a purpose-built, low-profile two-round 300 PRC holder to your Sig Sauer Cross Magnum Sawtooth.