Just got done making some prototype steel Remington 581 magazines I am looking for two or three guys that are willing to put them to the test to see how they function. Must be willing to run at least 500 rounds through and see how they function. I also address the problem with the old magazine where if you don't cycle the bolt fast that it tips up the back end of the cartridge and keeps it from chambering without pushing it in with your finger. These magazines will hold six rounds and they are in the white as I didn't finish them. If anyone is interested in helping me see if they will function, contact me @ greg300wbyyahoo.com. I will be charging $65 each for them once I start production which I think is fair because the cheap plastic Remington ones are going for $45 used. The testers can keep the magazine for helping me out.