What type of barrel threads does the Bushmaster use?
The Bushmaster 2000 uses standard Indian Creek barrel threads found throughout their other markers such as the Alleycat, Desert Fox, Puma, etc. The Defiant uses autococker threaded barrels. If you would prefer to get a Bushmaster with Autocoker threads, there are adaptors out there from LAPCO and Timberwolf Paintball can re-thread your gun to take them for around $45.