I'm not a gun guy but I did a bit of googling about Welrod because I had no idea what it was - other than it was certainly some kind of gun. At Wikipedia - I found this...
The Brügger & Thomet VP9 (Veterinary Pistol 9mm) is a manual repeater, magazine fed, integrally-suppressed pistol created by Brügger & Thomet (now B&T) for use as a veterinary pistol for putting down sick and wounded animals. The design is based on the Welrod pistol.
I'm not a gun guy but I did a bit of googling about Welrod because I had no idea what it was - other than it was certainly some kind of gun. At Wikipedia - I found this...
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Maybe it's cheaper? By a lot?
Your average redneck can put together a silencer, scuse me, a suppressor, for less than $20 at Walmart.