Almost every pistol is used with two hands which results in "two-handed fire"...pretty much since forever.
AR and AK pistols have been around for a long long time and have never been an issue and probably never will be. But a secondary grip on a pistol has been pretty well defined by the aft and a handguard isn't it.
Like I said, go look it up on their site on the pistol rules...not on that SBR vs Pistol worksheet. Call them. They'll tell you over the phone nine times out of ten.
