Well first of I'm a little new as you may have guessed by the topic so please excuse any ignorance that may show through. And now on to my questions. I recently bought an Empire CD and am just generally looking for any modifications that you guys have done to your CD's that have "real life" improved the overall performance. Hopefully you will go into detail about the part information, as I am still a little unclear on what components will drop in vs. needs fitting. Although I have meet a local LEO who gunsmiths on the side and he’s offered to help me with more intricate parts or fitting. Thank you in advance for your time and patience. BTW I’m very happy with the CD. Cost was 415.00 and after 500 rounds I am quite pleased with it. But I did buy it to upgrade. Thank you all for your time and patience in advance.