Rails,really. Pistol or rifle? You got me curious brother. Last rifle I assembled is a first run 14.5 barrel with a vortex flash hider permanently installed per regs to meet the 16.1 in.barrel length. Been offered serious coin for it with colt m-4 stock and the rest of it. I kinda feel where you coming from man. If it's a pistol my A1 11.5 on a military contract upper attached is open for trade to you. Till Friday cause Saturday its going to the gunshow. This isn't a sale forum but again I'm reaching out to a fellow member that's all.