Hi guys just want to be clear again... we do not live in NJ so you would have to ask a local FFL or 2A Attorney about local laws. I will try to be clear on the specs.
the barrel in this upper is a 16" barrel : as far as the ATF is concerned that is the legal minimum acceptable barrel length regardless of a muzzle device.. Im not sure as to why the muzzle device needs to be welded on for a 16" barrel in NJ...
the pistol verbiage was a typo as the specs template included that when we first posted the item for sale, we failed at proofreading the listing... all specs listed now on the website have been corrected and confirmed.
We have not sent the brake to be "NJ approved" to the ATF but i can tell you it is not a brake at all, it is a solid can with conical flash projection. it projects the concussion blast down range at a narrower angle (roughly 65 degrees) vs 180 degrees with no muzzle device.. this rifle upper is perfectly functional without the muzzle device, ugly and incomplete looking, but functional.
if your unsure about NJ state law, I would speak to counsel or an FFL about this upper and the specs. Print out the specs and bring them to an official and see if they break any laws...
thanks for the interest, we are here for any other questions