Cole-Tac Backbone Bag Frame ARCA Mount

The Cole-Tac Backbone Bag Frame is a rigid metal shooting-rest backbone designed to keep a rear shooting bag locked in place under the rifle's buttstock. Hardcoat-anodized for durability in field use, the frame installs between the rifle and the bag so the bag cannot twist, slide, or fold while you work the trigger.

This BF1001 variant is configured for the ARCA clamp pattern (Area 419 Arcalock style) and attaches directly to the rifle's rail. The Backbone pairs with Cole-Tac's Flat Bag or similar rear bags to give shooters a stable, repeatable prone and bench-rest platform.

Built from hardcoat-anodized metal and backed by Cole-Tac's lifetime warranty, the Backbone Bag Frame ships ready to mount. Approximate weight is 0.31 lbs with overall dimensions near 7" x 3" x 1".