I bought the Sig TacOps 45 Threaded but I want to buy a skeleton trigger like the normal TacOps 45... I haven't received it yet but I'm assuming they haven't upgraded the trigger and want to find one but I haven't been able to. Suggestions? I also want a barrel that's not threaded like the one shown in the normal one listed above (love that bevel), is there a Sig parts store I'm not aware of? Lastly I want some quality 1911 mags for it... I've heard the factory ones aren't that great. Thanks.