AirMarksman | FX IMPACT Backbone Rail

The Backbone Rail from AirMarksman is more than just an extended optics rail. The Backbone Rail has been designed to tie your entire rifle together and eliminate tolerance stacking by replacing both the factory optics rail as well as the factory backbone plate with one piece of extra rigid aircraft-grade aluminum. The AirMarksman Backbone Rail drastically reduces flex in the entire rifle, creating a more anchored and consistent shooting platform at the cost of only 4 added ounces to the total weight of the rifle.  On top of stiffening the FX Impact platform, the Backbone Rail features a full 18 inches of Picatinny optics rail, the most useable rail space of any rail system on the market, with 30 MOA of elevation milled into the rail. Based on input from top NRL Airgun Class shooters, AirMarksman also added a bolt retention detent to the Backbone rail that keeps the cocking handle and bolt probe held in the rear position when it is opened. This feature prevents accidental double feeds a