Well I just bought this rail from a guy off ARFKOM to get started on my SBR build but I missed the "FSP" designation in the description. Includes the rail, all hardware in the unopened bags, instructions, 3 FDE ladder style covers, and the orignal DD box. Price is $330. Interested possibly trading for another DD rail system, or .45 handguns. I'll deliver if you're in the PDX area, shipping otherwise is $10.