ATF Proses New Rule on Bump Stocks

Another House aide agreed that ATF's presentation made it clear that the agency is unlikely to push for a new regulation. This aide said the feeling at the agency is that current law is clear enough, and that it would be difficult to impose a new regulation limiting access to bump stocks in a way that's consistent with U.S. law.

Apparently, being consistent with U. S. law is no longer a problem.

Application of the Definition of Machinegun to “Bump Fire” Stocks and Other Similar Devices

A Proposed Rule by the Alcohol, Tobacco, Firearms, and Explosives Bureau on 12/26/2017

ATF: the Agency of making [shit] up as they go.