The in house review of this gun was done by Infinity. The narrative at the bottom is by Wraith, the proud owner of the TMP in the pictures.

Realism 

    Well, being as how I had never heard of a TMP before I got into airsoft, I'll just lie and tell you that this gun is very accurate to the real steel (hehe). No seriously, I do not know. The pictures of the real steel and the pictures are hard to distinguish, that much is clear. As for actual realism, I cannot atest to it's lack of or ton of realism.

Functionality

    Wow. This is the first word that pops into my mind when I think about the TMP. Wraith, a team member for Team Airsoft refers to this as his " Triple H" (Hand Held Howitzer). His description is for the most part correct. Aside from some rather annoying problems that this gun has, it is very functional on the target range and on the field. 

Effectiveness On the Field

     There are honestly not too many guns that drop heads in airsoft. The few I can think of are Florida Airsoft's AT4 (Which I had shot at me at OSC:II) and the 60's, and the TMP. This gun lets everyone within earshot know EXACTLY where you are, but it backs up it's voice with a bite. This gun has the best accuracy of any gas SMG I have used to date. Even in full auto with hard kick, the gun can be used to shoot through cracks, hit fingers, etc. As stated before, the gun is insanely loud, and each shot rewards you with probably the loudest crack you will ever hear from a gas gun. This gun could easily be a primary weapon, with some backup clips. The gun is surprisingly efficient with gas as well. Now, I don't mean SV Infinity efficient, but you can get two clips of BB's from one fill.

Problems

     Ok, if you love this gun so far, don't read this. This gun has some serious issues. First of all, you will need to carry a small Allen key with you everywhere you go, due to the fact that the gun catches BB's in the bolt porting after continuous semi shooting. This happens a lot, and you have to be prepared. This involves dropping the clip, prying out the BB and starting over. Also, I know personally of two TMP's that were broken (snapped bolt) because someone slammed the clip in with the bolt cover forward. THE COVER MUST BE BACK BEFORE INSERTING THE MAGAZINE. Did that get it in your head ? Also, as with all SMG full auto's, if you do not use the loading tool, or if you do not perfectly double stack the bb's, the gun will consistently misfire, and the bolt and cover will stay forward. This gun also has a problem cocking. Sometimes the gun takes two or three tries to get the bolt to actually engage.

IMO Opinions

    Overall, I highly recommend this gun, to anyone who is in the market for a gas SMG. If you don't mind the occasional problem, and incredibly loud firing sound, check this gun out. However, remeber that at 240$+, the Micro Uzi and Mac 11 offer similar performance in smaller, cheaper packages. Both the Mac 11 and the Micro Uzi destroy the TMP in terms of ROF.