From Gun Rights Examiner:

The Bureau of Alcohol, Tobacco, Firearms and Explosives’ classification of pistol grip only firearms with 14” barrels that fire shotgun shells and are over 26” in overall length as neither “shotguns” nor National Firearms Act “Destructive Devices” or “Any Other Weapons” has created a situation wherein the agency must either quietly save face or have it exposed that untold numbers of good faith gun owners currently legally possess firearms problematic for the government to allow. In order for that status quo to continue, ATF, in conjunction with certain members of Congress and lobbying interests, is working at “tweaking” its definition of the arbitrary “sporting use” term, insider sources tell Gun RightsExaminer. And with that will come a push to expand definitions to allow for further importation bans on certain types of presently legal ammunition.