Just a quick rough primer on gun IP:
copyright - used for writings and art mostly, books, poetry, paintings, film, music, etc
trademark - for name brands; coke, mcdonalds, nike swoosh, etc
utility patent - a new idea on how something works
design patent - a unique shape or "look" of a more common product
trade dress - The easily recognized unque look of a product. think MP5. mostly common law in the US
Don't be so sensitive snowflake, words can't hurt you.
"Facts don't care about your feelings" Ben Shapiro
If it's on the muzzle it's a brake NOT a break
By the power vested in me as God of my world.
Just throwing this out there...not sure if it was mentioned, but how hard would it be to make a lower receiver for an SKS similar to the Pearce Armoury ILS chassis? Move the fire controls closer to the mag, make it lock up the to receiver the same way any other chassis/mag adapter does, and voila, cheap black rifle...
To go with the ammo request, since you already have a AR180b lower how about a AR180b upper in 300 blk?