I second cee's suggestion . It is easy to find mild steel rod ( if you are white collar just troll construction sites , dont troll machine shops they dont waste much . Once you have some mild steel identify if it is rebar , this is not hard , rebar has ridges , much like ruffles but the ridges go around instead of along . ( it is unlikely to be rebar simply because when folded rebar is too big to fit a mag well in common sizes lol ) . None the less if rebar grind off the sticky up parts where it may contact the soft ar receiver . Now i suggest you do this by turning the rod against the grinding medium but anyway you get smooth to the reciever is fine by me . Heck if you are a true hands on shop smith you will bend the jig then bastard file all the ridges down to smooth as a baby's bottom . Point is dont fight it , dont spend a lot of money , get the plans , or if your feeling especially inventive dont , and build one . If your super cheap it can be done for the cost of a propane torch and a bastard file which you allready have , or can be purchaced for 50 bucks or so ... Oh hell the tools alone cost what the " tool " would to order then there is the pain in the ... My point is that there are few safe shortcuts when it comes to working on or maintaining firearms , you pay either by the sweat of learning and making or the sweat of others doing the same . IMHO you should scrounge mild steel rod and build your own tool Itmay only get used a time or two , but that isnt the point is it ? In spite of what i said it can be done with a proper leingth of bar stock a vice , a hammer , and a file . just be sure and not leave any burrs that may mar your lower . That is not how i would do it but you can lol . Also honestly to do it by yourself your going to need a tool to lock into the magwell and compression lock onto the delta ring in order to be able to reliably remove and replace handards . You can buy it or build it , its your choice .