I have an almost new AR57 16" upper with one AR57 factory 50 round magazine plus 450 rounds of FNH USA SS197SR 40 grain Hornady V Max ammo for sale. $1000.00 cash for the complete package. I mounted this upper to my Colt lower with an Eotech sight and shot one box of 50 through it, then put it away for later. I have not used it since. Only used once. It comes in the original AR57 box with the recoil buffer. AR57 recommends using this heavier recoil buffer. This is a very good deal. 5.7mm ammo is selling for more than $50 per box if you can find any and the uppers have gone up in price drastically. I am selling this setup for what I paid for it last summer. Why? I need some cash to fund other toys/projects. Private message me please. Not interested in trades. Price is firm. Thanks!