Cost will be around the 750$ range to build one.
I only own 3 shells, but the tube should hold 7 or 8 +1 in the chamber, FPS is a little complicated to answer. First off, it's run on regulated Co2, and second is that the shells can be loaded with 1 to 9 BB's, so FPS can't be a definite answer.
I did find out today that a shell loaded with 3 .30g BB's along with 6 .20g BB's on top devastate in a CQB room though
I only own 3 shells, but the tube should hold 7 or 8 +1 in the chamber, FPS is a little complicated to answer. First off, it's run on regulated Co2, and second is that the shells can be loaded with 1 to 9 BB's, so FPS can't be a definite answer.
I did find out today that a shell loaded with 3 .30g BB's along with 6 .20g BB's on top devastate in a CQB room though