I have a VQ carbon 16in barrel, lightened plastic stock, VQ target hammer, extractor and a bolt buffer. I also have a 4.5x14x40 scope on it. Total with the scope is right under 4.5lbs. I can bumpfire a whole 25rd BC magazine fairly easy. Most of the time I'm in 5-10 round bursts with a second pause because my finger/thumb moved, then bump off the rest of them.