This is a word of caution, a few things I've been hearing directly or indirectly have raised my hackles and I wanna help keep folks squared away...
There seem to be quite a few folks dressing up their gripless, MonsterMan, or U15-equipped OLL-based rifles with fake M203 tubes that launch flare cartridges. This is a no-no.
FLARE LAUNCHERS ARE AN 'EVIL FEATURE' ON SEMIAUTO CENTERFIRE RIFLES WITH DETACHABLE MAGAZINES!!
It appears some people haven't tuned in to the whole list of evil AW features for semiautomatic centerfire rifles w/detachable mags, and just worry about the basic pistol grips & telestock items - and somehow they end up thinking a 'flare launcher' is a legally 'neutral' device, like a bayonet lug or threaded bbl on a rifle. Remember,
12276.1. (a) Notwithstanding Section 12276, "assault weapon" shall also mean any of the following:
(1) A semiautomatic, centerfire rifle that has the capacity to accept a detachable magazine .
and any one of the following:
(A) A pistol grip that protrudes conspicuously beneath the action of the weapon.
(B) A thumbhole stock.
(C) A folding or telescoping stock.
(D) A grenade launcher or flare launcher.
(E) A flash suppressor.
(F) A forward pistol grip.
- IF YOU HAVE A SEMIAUTO CENTERFIRE RIFLE WITH A DETACHABLE MAGAZINE,
YOU CANNOT HAVE A FLARE LAUNCHER AFFIXED.
- IF YOU HAVE A FLARE LAUNCHER ON YOUR SEMIAUTO CENTERFIRE RIFLE,
YOUR RIFLE MUST HAVE A FIXED 10-RD MAGAZINE.
I also trust no one has a true grenade launcher on their rifle of any sort (even like those originally moutned on Yugo M59/66 carbines) - such devices are intrinsically illegal even without being attached to a firearm (12301(a)(4) PC, destructive device statutes).