My overall impression is good, the fit of the upper to the lower is good, no play and locks up tight, charging handle feels good and looks to be decently made(could be a little more "beefier" feeling) so we will see if that holds up not sure if anyone makes a better replacement for it yet. The trigger is stock, feels okay but I have to admit I haven't been able to take it out and shoot it yet, but have dried fired it a couple of times feels good not much creep, not sure of the poundage I don't have a gauge. The main complaint I have is they didn't put any sights on it from the factory or include a sling, not really a deal breaker for me but you'd think a company like SIG could include those items for the price the want for these(but like I said I traded for this one and I came out to the good) This is my first AR Style Pistol that I've owned and the first SIG MCX product I've owned so time will tell and I'll let you know how it preforms. I really like that you can change out the Bbl.'s pretty easy and I plan to get the 11.5" 5.56 and maybe a 16" 300BLK Bbl. later on. I'll check in here soon with a range report and function. This has to be the most "non NFA type weapon" with the sliding brace I have ever seen. Not sure how to post pics since I don't use a photo bucket type service, I'm use to just pulling them from my computer and inserting.