Tapco doesn't make the law, they just make the junk we have to use to abide by it.
First off, what, exactly is the part you're referring to? Please let us know and we can provide more insight.
Thanks for your response.
The item is a Tapco, "Saiga Rifles Gas Piston." This is the part that screws into the bolt on Saiga rifles. After rading many,many posts, it seems that most think this part is crap anyway. I guess my real question is, If I replace the foregrip on my Saiga .308 with an American made grip, can I legally use extended magazines? Thanks again.