Tectonic™ MCS Accessory Rails
Unfortunately, this accessory is unavailable for your truck.
Compatible with your truck.
The MCS Accessory Rails are the mounting backbone for the Modular Cargo System. They run along the inside bed walls under the cover and give the MCS Cargo Tray, Side Bins and Mini MOLLE panels a solid, repeatable place to hang. The rails clamp in underneath your existing Tectonic™ rail clamps, so nothing gets drilled into the cover or the bed. Install them once and bolt on what you need, where you need it.
The system uses two pairs of rails, a short pair up front and a long pair in back. Either pair takes Side Bins and Mini MOLLE panels; the front pair also carries the Cargo Tray, and ships with it. So if you’re ordering a tray, you already have the front rails covered and only need the rear pair to finish the bed. If you’re skipping the tray, pick up whichever pair, or both, fits where you want your storage.
Fits Tectonic™ Sport, Pro and Max. Sold in sets of two.
Frequently bought together
Built to Be a Platform
Tectonic was never meant to live by itself. From the first sketch it was a hub for an accessory ecosystem above and below the cover. Here’s a quick look at the first pieces: the Meridian™ rack track and crossbars on top, and MCS storage underneath, with the full bed still open whenever you need it.
![Subscribe below and [BR] receive a special offer immediately](http://www.peragon.com/cdn/shop/files/psub.png?v=1781500437&width=1000)
