Aero builder's kit. Assembled and shot 2-3 times using the 16" BA barrel I have for sale in the "accessories" section. If you want the barrel and the builder's kit you can have it all for $475 and have the start to a slick build. Basically I'll throw the barrel in for $50 of you buy the builder's kit. Barrel by itself is $125

15" rail

**Let me know and I can assemble the upper for whoever buys if they want to run it with the BA barrel.