The superior handguard thermal mitigation solution.  Liberty's Defense straightJacket Rail Cover is a perfect ensemble of five separate layers of Kevlar, basalt, and aluminized silica stitched with Kevlar thread.  The failsafe retention system of Kevlar webbing, marine grade stainless steel cable, and snap shackle ensure constricting pressure to your rail.  Each straightJacket Rail Cover is made to order with a custom fit for your specific rail/handguard.  Due to the custom nature of our manufacturing process, we currently have an estimated lead time of five weeks for delivery of your cover.