So I’ve been looking around for some goodies for my new P07 and was having a bit of a hard time finding a magwell. I the decided to take the CZ custom one off my P10S and give it a try. Low and behold it fits snuggly and correct. Now I just need to figure out how to secure it to the mainspring retainer. Any ideas or does someone make a threaded mainspring retainer that could be used?