Court: Yep, It’s A Suppressor
SIG’s extended muzzle brake is, in the eyes of the law, a suppressor component. The U.S. District Court of New Hampshire upheld the lower court’s ruling in favor of the ATF. “[The] gun SIG Sauer seeks to market includes a ‘silencer’ under the National Firearms Act,” reads the ruling.
Announced at SHOT Show 2013 and put into production about a year later, SIG’s permanently-attached muzzle device has always been a little controversial. It was originally touted as a brake that could be converted to a suppressor with a threaded adapter sleeve. The idea was that SIG could sell the MPX carbine and customers could buy an adapter separately. This would give shooters the instant gratification of getting the carbine right away and let them get in the NFA-waiting line in their own time.
It was marketing genius, and an engineering solution to a regulatory problem. By permanently attaching the muzzle device to the barrel, the MPX brake also brought the overall barrel length to over 16 inches long, preventing the gun from being NFA-regulated, too, as a short-barreled rifle. The suppressor adapter was to be the only NFA-regulated component.
Whether the brake legally counted as a suppressor component was up for debate immediately. The ATF quickly determined that it was indeed part of a silencer, making it an NFA-regulated component by itself. SIG filed suit against the ATF’s determination in 2014 and, late last year, lost their first lawsuit.
The appeals court agreed with the lower court’s ruling and agreed with the ATF. The ATF’s case argued that the device did not function “safely” without a sleeve, and that installing a sleeve effectively made it a silencer.
The MPX has a handguard that extends beyond the first baffles of the muzzle device. This is why the ATF determined that the device was unsafe and required a sleeve; the gasses leaving the muzzle were directed toward the shooter’s hand, putting the user at risk. In a certain light, it may seem like the ATF determined that the device was a suppressor — after converting it to a suppressor.
Read To Full Story At GunsAmerica: https://www.gunsamerica.com/blog/appeals-court-sig-muzzle-brake-suppressor-component