Hello
here is my tm sai g17, included in the sale is:
-AW glock drum mag( huge gas capacity perfect for all weather
-2x tm mags(with o ring in the fill valve to stop leaking when filling) 1x we metal mag and a we plastic mag
-tm standard blow back unit with Poseidon piston head
-4x nine ball gas routers
-Poseidon icr breaker nozzle valve(for tm nozzles)
-assorted spares including hammer springs a trigger bar and pins/springs
-Guarder threaded outer barrel with 6.01 ra tech steel barrel
-guarder alluminum slide( not in the pic)
- glock stock, works ok but doesn't for with the AW mag 
-kriss glock kit which woukd make a great carbine with the stock and threaded barrel( would work really well with 50 round mags)

originally the pistol had a tm bbu and nozzle, but the nozzle broke on game Day and the only spares I had where WE nozzles. So here is a list of what is inside the pistol as lists are easier lol:
-UAC lightweight blow back unit for we glock 
-WE nozzle with agm anti icer nozzle valve 
-guarder steel outer barrel 
-guarder hop unit with maple leaf 60°bucking(yellow) and standard we barrel 
-guarder steel guide rod and recoil spring
-guarder steel trigger group and chasis with we hammer spring( guarder hammer springs included in spares)

If you want to use a tm nozzle for the nine ball routers you can purchase one off eagle 6 for around £26. Alternatively( and probably better) you can get a uac ally nozzle that will work for both types of gas routers. The tm nozzle need to be used with the tm bbu unit as the diameter of the tm nozzle is a little smaller than the we nozzles. As it stands 2 of the magazines have mine ball routers in so if you want to stick with the we system I recommend picking up a couple of we or armourer works gas routers. Personally the we system is a bit cheaper and parts are everywhere.

I have replaced the guarder hammer spring with a we one(which was a recommendation from a few glock owners) because the hammer is a little weaker( but by know means actually weak) meaning the slide racks over the hammer a bit easier which does have a difference in terms of how fast the slide reciprocates and the gas effeciency( with the AW drum mag it does not matter as it's soo big).

I would only load the drum mag with nuprol 2.0 or maybe 3.0, the black gas basically has the same effect as c02 with the huge gas resovoir inside the mag and it would most likely start damaging internals and nozzle return springs. If your nozzle return springs should brake I have the dimensions of the springs so you can source them alot cheaper on a spring specialist site or ebay rather than sourcing them from an airsoft retailer.

The bad points are as follows:
-the slide has a little chip infront of the bbu(shown in the picture), it does not affect performance as I can provide a video of it firing over whatsapp, if anything it makes the slide a little lighter which should help with gas effeciency lol
-there are signs of where on the bbu, hop unit and trigger, which is a flat trigger and looks amazing.
-There are marks on the inside of the slide where it reciprocates on the rails of the lower reciever and are just where the slide is wearing in, this slide is rather new 
other than it shoots great, looks great and is great, the range and accuracy in this thing is pretty amazing with the maple leaf hop and key(forgot to add to the internals list).

fps wise it does depend on the gas, with the longer inner barrel with the threaded outer using a standard metal mag and black gas it was hitting 345-350. Nuprol 2 was hitting consistently at around the 320 mark. This was measured at imperium last month so it was a bit colder than it is now.

the reason for the sale is that I need parts for my mp9( as I love it a bit more than this lol) and want to spend a bit extra on wii tech steel parts as stock kwa parts are a bit garbage aswell as wanting a tnt apsx barrel system for it as they are amazing.
for this reason I am not looking for swaps. If you want to know anything more or want any more pictures please ask

the price I am after is £450 for everything, I am open to offers 

many thanks 
Seb