The AirMarksman Ribcage is the perfect addition to your backbone rail. Simply bolt it on to create protection for your barrel from side interference. The ribcage also allows accessory mounts to the provided M-Lok rail. No more point of impact shift from touching the barrel with your fingers!

Available in four colors (gold, blue, black, or red) and either slotted or triangular.

PRODUCT SPECS: Made from billet aluminum and CNC machined in the U.S. .25lb per set including hardware. 2 sets will be full length on a long backbone, and 1 set will be full length on a medium backbone.