I've got a put-together lightweight 300 blk out... 5.5 lbs

I can add in the ammo for a steal as well...

250 rounds of TNT Ammunition, 220-grain subsonic polymer coated (special zombie run), and 75 125 grain normal... altogether $200 more if you buy the rifle.

The rifle build is :

******** 300 Blackout
  1. Gemtech Suppressor BC - $258
  2. WMD NiB bolt and bolt cam -$119
  3. Titanium firing pin -$50
  4. KNS Firing Pin Retaining Pin - $10
  5. NiB charging handle - $30
  6. Lower (TN Arms polymer hybrid ) $100
  7. Optic = C-More site-$250
  8. Anderson Upper & Barrel - $350
  9. Lancer rail (included with upper)
  10. AAC 51T QD Flash Hider - ($99)
  11. Stock -MagPull Minimalist ($50)
Total = $ 1316

I'll let the rifle go for $1100 and the ammo for $200 more if you want it.