Rogue OSO Barbell Collars

These collars are in the boneyard due to inconsistent machining of the lettering and outside face. These collars may have mis-matched colors or no finish at all. All collars are functional and in new condition. All sales are final.

This is the exclusive, Rogue-branded version of the OSO Barbell Collar—an innovative, aircraft-grade aluminum clamp designed and is manufactured in Columbus, Ohio.

Sold in pairs and equipped with a rubberized interior lining to protect the bar, OSO Collars deliver a secure, stable hold through repeated, high-impact drops, and allow easy adjustments or removal with a simple lever and lock/unlock mechanism. It’s the OSOs unique look, though, that generates the most attention. With this design, that means an industrial gear-style shape in gunmetal gray with the Rogue logo down the side.