WTT what I want for what I have

So I bought a 10.5 pistol length upper in 9mm that I don’t need. Currently has a Holosun 503G and a v56 rail. Trying to find someone who wants to trade for a short length upper in 223 or 556.<br><br>Up for trade is the upper and the optic. I can keep the rail on the lower if you want since I have the same rail on my other two 9mm upper. You send me your upper (with or without optic if you want).<br><br>Current wants are<br><br>-M4 profile barrel<br><br>-1:7 or 1:8 twist<br><br>-12-15" rail<br><br>-Optic doesn't matter but needs an integrated mount<br><br>-4.25" M4 profile A1 handguard<br><br>-1:7 twist barrel<br><br>-14.5" barrel<br><br>-As long of a rail as you can fit on the barrel<br><br>-Optic doesn't matter but needs an integrated mount<br><br>-HK416 profile barrel<br><br>-14.5" barrel<br><br>-12" or longer rail(I'll throw on a TPS64 for it if you need it)<br><br>-Optic doesn't matter but needs an integrated mount<br><br>-You send your upper and I can keep the rail if you want<br><br>-Always open to discussing other options or items you can add to make it work.<br><br>Thanks in advance