Originally Posted by The Rules
Spyder Markers Only. Every device used to propel a paintball during any Spyder Cup 2007 event must be a Spyder paintball marker and must be recognizable as such. Upgrades to the barrel, regulator, feed neck, grips, bolt, expansion chamber, and external cosmetics will be allowed as long as the marker can still be easily recognized as a Spyder marker and the basic functioning of the marker remains that of a Spyder. At no point may the Spyder name or logo on a marker be covered or removed. Each player will only be allowed to carry one marker with one attached barrel during each match.
Seems pretty clear to me as far as your question HDH, however, it seems to leave hanging everyone who has gotten their marker re-annoed, also, what about halfback markers?