I opened my webshop on the following address, maybe you know it already but it's worth having a look at it from time to time:
http://www.maestro-design.co.uk/
There are not too many products but all of them are really useful: butt hook extensions, triggers, bipods etc. Also an Anti-POI-Shift Kit for P70 rifles coming soon... Visit my website, have a look at my Portfolio, Blog and Shop pages! If you have your own wishes, let me know and maybe I can design it for you...