OHh boy.
I LOVE TM pistols. awesome. by far the best you can buy (and don't let those who favour KWA's metal and shinyness sway you).
They may well be plastic and lightweight, some feel like toys but they certainly know how to lob a BB!
Full auto? Ignore it. anyone worth their salt can fire a pistol quick enough on semi, auto only serves to waste gas and ruin the pistol quicker.
from there, there is a couple of different things and features to look for:
NBB/GBB
their MK23 NBB is awesome, quite frankly silly range out of those things and compatible with VSR parts, so even sillier range, plus you can't hear them go off beyond about 5/10m outdoors. 10/10 would buy again (I dropped mine ain a swap and lost it.... there goes £200)
GBB as they cycle the round into the chamber they can be fired much more quickly than a NBB pistol, so bear that in mind. I own 4 of TM's GBB's. 10/10 would buy again.
Magazine size/type:
Single versus double stack
It's simple really, single stack mags just don't hold enough gas, go for double.
If you REALLY want a 1911, get a KJW CO2 version, just don't bother with the 1911s/MEU's, still they ARE very pretty.... 5/10 I regret my purchase.
Double stacked XDM fires every round, locks back and then repeats before needing a re-gas 10/10 would regas again.
The 'big one'
the Desert Eagle.
Jesus tittyfucking christ this thing is big! also, the pistol is large....
Goes BOOM like a right cannon when you fire it and whilst the recoil takes more time than a CO2 pistol, due to the size and weight of the slide, you get rediculous muzzle-flip and thus, cool factor.
The barrel is long, so as you stated (and Tariq got wrong) the FPS IS higher, and people do tend to comment when running on .25's that 'OW JESUS, WHAT THE HELL IS THAT THING!?'
Plus, it's accurate with a long range to boot (you could skirmish a whole day with it and no rifle given enough mags)
With TM pistols, you are never going to get a lemon, they do run fine on higher powered gasses, the KWA crowd tend to spread that they only work on duster gas, but it's just utter bullshite, myself and collegues have run propane and I've even dabbled a touch of MAP gas through my MEU without issue.
Quickly then, their current range (or there abouts, certainly the common ones you'll see)
1911 (have shot many of)
Stylish, classic. comfy, but the single stack magazine lets it down Very easy to get a retention holster for
MEU (own personally)
Tactical, stylish, Comfy again single stack magazine lets it down Very easy to get a retention holster for
XDM (own personally)
replaceable back strap so good for many hand sizes, tactical, something a bit more unique, kicks like a mule, very accurate. Double stack mags are awesome. needed LOTS of lube. (like every 75 rounds it jammed up, but was livable with. Most 'softers won't fire 75 pistol rounds in anger in a whole year.) Not easy to holster (my Holster for it cost me £120)
PX4 (shot many of)
Same as the XDM, but less recoil and less lubing. I can't get along with the stylings of it. Very easy to get a retention holster for (important with a £150 piece of kit)
Desert eagle (own personally)
THAT KICK, HNNNGGHHHHHHH! silly accurate, awesome gas consumption (double stacked mag, plus extra depth, you basically empty a bottle into each one)
Comes in bad-ass chrome flavour don't even consider trying to holster it...
MK23 (own personally, but it's somewhere in a swamp)
the ultimate sneaky bastard weapon. fires further than an AEG and cannot be heard. slow ROF in comparison. My personal favourite airsoft pistol I've ever owned and it's had more kills than every other RIF I've ever had (most of them combined)
Glocks (G17 advance owned personally, experience with others)
All very similar, just down to preference, double stacked mag, nice kick to them.
Hi capa (experience with)
Again, couple of styles, but essentially the same thing. harder to holster than a 1911, but feels the same in your hands except it has a double stacked mag.
there is a reason they are the 'go to' Practical pistol shooters choice.
M9 (they call it something else) (only ever shot one and only briefly)
Was unimpressed, accurate, kicked alright, but M9 ergonomics aren't for me. seemed to lack the occasion of all of TM's
Hopefully that'll help you. It's certainly wasted a bunch of time I could be sleeping in