8.1.8 Non-IDPA-Legal Features and Modifications for All Divisions The following features and modifications are not allowed in any division unless otherwise specifically allowed in the rulebook.
A. Compensators of any type including hybrid or ported barrels.
B. Add-on weights. This includes (but is not limited to) weighted magazines, tungsten guide rods, brass magazine wells, weighted grips, and weighted grip plugs.
C. Heavy and/or cone style barrels without a barrel bushing except as allowed in ESP, CCP, BUG and CDP divisions with length restrictions.
D. Sights of non-standard conf