flash-hider or not if there are threads on the end of the barrel you must 'disable' them.
two way of doing it is pin+weld muzzle break or muzzle nut. most gunsmiths provide this service for around $50.
look-up federal assault weapon ban on wikipedia and get yourself familiarized on 'evil' features.
there are separate sections for pistols, shotguns and rifles. evil features similar but how they applied to each type of firearm is diferent'
for instance detachable mag in shotgun is on itself is an 'evil' feature and you only allowed to have that on your semi-auto shotgun in MA. or if mag is fixed you can have either folding stock OR pistol grip.
when talking about rifles detachable mag is not an evil feature but rather pre-requisite. so if you have any semi-automatic rifle that's able to accept detachable magazine you are only allowed to have one evil feature. for AKs it's pistol grip. but since most AKs have threaded muzzle you must have those threads some how disabled because they on itself are evil feature
flash-hider ot threaded barrel to accommodate one
as it's phrased in the law. an obviously if you have pistol grip you can't have folding or collapsible stock either, not bayonet lug nor grenade launcher(lol)
Thanks. I was looking at one with an underfolder but I suppose that would not be compliant. Boooo
that is correct. you can not have any kind of folder or adjustable stock.
fixed stock only, obliterated bayo lug, covered+welded threads.
century has WASRs that are already AWB compliant as per above. they also have identical ones that have not-welded muzzle device so that would need to be welded on once in MA.
i personally would not recommend WASR but many people like them so it's up to you. to a perfectionist like myself its hard to accept such shoddy built gun. they are functioning guns and reliable but probably the worst quality out there.
if you are not hard set on specific AK i would highly recommend Saiga. unconverted or partially converted (w/o front end conversion). you can still get them and they are excellent quality guns build by Izhmash - specialist of true AKs. these are AWB compliant from the factory, so no worries on welding anything or removing bayonet lugs. Saigas are russian imported guns that have been recently banned for import. from this point on prices on them will only go up. i remember days when you can buy saiga for $299 shipped plus cost of transfer. 5 years from now these will cost at least a grand, possibly more. converted ones probably another 200-400 more depending on level of conversion and parts used.