I have been looking to make the NFA plunge for a while and have specifically been looking at 9mm carbines. I have an opportunity now to get one and I have narrowed it down to a Spikes tactical Brown Recluse or a Angstadt Arms UDP-9ic. I realize the UDP-9iC will require two stamps vs the Spikes only requiring one. I have hashed through the specs but honestly don't know enough to know if there is a significant difference between these to easily make a decision between these. Any inputs on these would be appreciated.
https://www.spikestactical.com/products/complete-rifle-recluse?variant=32734017548
https://angstadtarms.com/product/udp9i-integrally-suppressed/
https://www.spikestactical.com/products/complete-rifle-recluse?variant=32734017548
https://angstadtarms.com/product/udp9i-integrally-suppressed/