zookeper Report post Posted October 5, 2014 i have been trying to figure out how to construct a vertical rig that has good retention and now thinking that the steel spring in the open side may be the only practical way to accomplish this and is why it's the way others make them. is there a source for small quantities of this hardware? i haven't been successful with google searching, thought i'd try asking here. thanks! Quote Share this post Link to post Share on other sites