Help identifying this pistol?

[LewisUK]

So I bought this yesterday as a second hand, it doesnt come with any box or manual and I was wondering if anyone could identify it for me? - It is gas powered.

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[Matious]

you got yoursef a WE XDM, i have a TM one myself

heres a review of it 

http://www.patrolbase.co.uk/blog/we-xdm-4-5-tactical-pistol-review/