I have Quad rails available for the RFB! I began this project as I wanted one for my own rifle, and couldn't wait any more... I had seen them in the Kel-tec literature, but couldn't find them anywhere, so here we are. A lot of machine time, as well as handling (finish work, etc.) goes into this thing! I have them in Standard length as pictured, and I have them available in shorter versions as requested from several members. The Std length is 3.800" and the shorter one is about .400" shorter. The Std gives more room for accessories, while the shorter one is behind the jam nut and shoulder on the barrel. I have had these available for a couple of months now, and you can read about them in several of the RFB topics I'll sell them to KTOG members for $150 with FREE shipping to all 50 states for Priority Mail. (usually only 2 days) I can take PayPal or Postal money orders. Please reply with I'll take one, Then PM me with your details, and whether or not you would like a short version, and I will give information on how to pay or mail payment. I will ship same day as I recieve payment. Thanks for your interest!