Noveske marked SWS 11" quadrail, SWS barrel nut, and proprietary barrel nut wrench, mounting hardware. This is a take-off from my 16" recce. It's in great shape, though there is a mark on the left rear, presumably from fraternizing with other rifles in the safe, visible in the third photo. $300 shipped. ***Stock and Grip SPF***Ergo F93 Pro Stock, FDE, lightly used, with castle nut + Ergo suregrip, FDE, lightly used. $100 for the set. Stock has integrated overmolded buffer tube, and offers consistent cheekweld in any stock position.