Marker is used, but does have some upgrades including:

New shocktech gunfighter frame

Used shocktech lowertube,shocktech pneumatics with low pressure chamber, shocktech bolt and pin,cp regulator and planet eclipse pops asa. The feedneck is threaded and will accept threaded clamping feednecks.

Airs up and is ready to go. I would be happy to take more pictures if your looking for something specific.