The Cole-Tac Backbone Frame Arca is a purpose-built support bag frame designed to change how your rifle interfaces with rear or positional bags. This hard-coat anodized metal frame mounts directly to your rifle via an Arca interface, providing a stable platform so your bag rides securely on the frame instead of being strapped over the optic or receiver.

On the Backbone Frame, four hook-and-loop straps lock your support bag in place, while the wide, contoured surface helps prevent twisting or shifting under recoil or when changing positions. This makes it well suited for precision rifle matches, long-range practice at the range, and structured training where consistent support is critical. The design reflects Cole-Tac’s focus on practical innovation and careful craftsmanship for serious shooters.

Key Features:

• Manufacturer: Cole-Tac
• Model: Backbone Frame Arca
• Material: Metal
• Mounting Type: Arca
• Features: Four hook-and-loop bag straps, wide support surface