I just picked up my Red Jacket Firearms RAK-12 conversion from my FFL (transfered from Atlantic Firearms, who are great to deal with BTW, packing was excellent with the shotgun in a padded case). Let's just say I'm a bit finicky when it comes to firearms, so this is only my first impressions, with much more to follow (range report on Tuesday).
Overall fit and finish, very good to excellent (one small metal blemish on left side). Shark muzzle brake is awesome, can't wait to see it perform. Side folder is of excellent quality and I like the rubber butt plate, beats the metal underfolder on the AK. I like the Galil style cocking knob. The foregrip with integrated rail is nice, but I'm always leery of polymers when attaching "stuff". The H&K sights are very nice, but the front post is crooked by a few degrees (attention to detail on that one, I'll fix that before I go to the range). The swivels are of good quality and the scope rail is nice (although I'll never use it, I wish I could transfer it to the AK). The pistol grip is also very nice.
Now for the bad, or at least not so good. I loaded 5 and 10 round mags (10 are a bit bulky, but once loaded and inserted it's good) and I hand cycled several mags, since I can't go to the range until Tuesday. It jams up on the slugs almost everytime and actually damages the casing. We'll see if this is an issue in a live fire test. Birdshot and 00 buck cycle just fine. I am also not a real fan of the mags being plastic, but I'd hate to carry around metal ones, that is for sure!
More to follow.
P.S. And for those who are still waiting for a Tromix, And I'll post some pics soon.