Selling a mint condition Geissele SMR MK5 13" rail in DDC. Comes with barrel nut and wrench. I had this rail on a 14.5 build but never used it before going to a shorter barrel. The barrel nut will show some finish wear from the install, but the rail itself is excellent. These are no longer made and hard to come by, especially in this condition. $200 shipped. Paypal or USPS money order.