UMP-45 | Bone Pile is a Mil-Spec SMG skin from The Bravo Collection, which entered the CS2 economy alongside the Operation Bravo Case in September 2013.

The float range for this finish is restricted to 0.06–0.34, so Factory New, Minimal Wear, and Field-Tested are the only obtainable conditions on the open market. Battle-Scarred examples are not produced, so the most worn copies still retain a relatively clean appearance.

A StatTrak™ version is available, which tracks confirmed kills made while the skin is equipped and typically commands a premium over the standard finish. Active listings for UMP-45 | Bone Pile are tracked across 17 marketplaces, with prices spanning $5.71 to $300.00 depending on wear, variant, and seller.