The Bushmaster series comes standard with the most capabilities at the flick of a switch. (inside the grip) Go from semi-auto (single shot), 3 shot or 6 shot burst. It even does full-auto!. There are four separate modes to choose from. Semi Auto, 3 shot, 6 shot burst or full-auto modes stops when the trigger is released, allowing single shot firing in any mode. The on board R.O.F. is programmable through dip-switch configurations laid out in the manual. No variable pots to keep you guessing. Rate selection will give you 4 - 13 cycles per second.
The Indian Creek Designs Bushmaster B2K2 is older, so while it may be available used and in a few cases new, it is not commonly available anymore.
at first the b2k2 worked awsome for me i got to know how to work it very well. it shoots god and over all with balls in it is farley qiuet. i like the milling and it has an ok weight
i dont really like this gun cause after about a year i had many problems with it. i could never get the preasure at 250(reccomended preasure) while have my volosity at 250 which is he max at my local field. the stock barrel is a piece of crap so i up graded to a freak which i really liked. also the rise is ectreamly had to get off i had to get my local field owner to get it off for me. And he is a really big guy and he still had trouble so he had to clamp it down to get it off.
i would say if you want to get a bushmaster dont waist your money and get a impulse. tons of people have them and they work great. they r very light weight and shoot very good.