Our Sig Cross Pre-Fit barrel includes a barrel extension for shooters to upgrade their existing barrel seamlessly.
Our pre-fit barrel ensures hassle-free installation onto the Cross rifle, allowing shooters to quickly and confidently swap out barrels to their desired caliber. Whether you opt for carbon fiber or steel, our barrels enhance the platform and provide shooters with the utmost confidence in their equipment’s reliability and accuracy.
Bringing you a new class of American-made products
to the firearms, aerospace, and defense industries.
PROOF Research
10 Western Village Ln
Columbia Falls, MT 59912
FOG HORN 