I'll be sending the standard SP-01 to you for that, talked to Rob via email. Gotta wait until tax return though. Now I know the ACCU shadow bushings are considered a production part, but since it sounds like they have to machine the gun to install them, I'm assuming it will no longer be considered a production drop in part? And I'm also assuming that going with the fitted barrel will kill that option as well since it's not a production part. So if I'm accurate in my assumptions I'll probably get the standard SP-01 done by you and keep it production legal and send the tactical your way for the threaded barrel (threads cut and recrowned) and ACCU shadow bushing to top it off. Limited on what I can buy in California and a pain in the ass to bring in guns via SSE so gonna build the guns I have up to what I'd want. Thanks again for all the help, direction and feed back.