Help identifying usp

[HuttArmouries]

Got this usp in a job lot. Full h&k trades. No brand markings and a weird nozzle setup that reminds me of a kwa mac 11

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[JimFromHorsham]

KSC 

 

[HuttArmouries]

KSC 

I did look at those but they dont have the metal nozzle

 

[JimFromHorsham]

Serial numbers and barrel numbers point to KSC .

Pretty sure it’s pre system 7 .

 

[Pupa2794]

It's an old KSC with an aftermarket nozzle.