I have a Knights Armament M4 RAS rail set that needs a new home. Top and bottom rails are basically brand new, never mounted. Set will come with at least 3 ea 11 rib covers, and either a 6 or 4 rib cover. I accept paypal for payment, or USPS money order or other certified funds. Price shipped to the lower 48 states via priority mail is $135.00. Email will get the quickest response. Thanks for looking!