Vector Arms V51 Pistol - problem with PWS FSC91

Encountered a lame issue attempting to install a new PWS (makers of good kit) FSC91 muzzle device on my V51 pistol. Have never seen something like this happen and now not sure if I'll need a new barrel...

 

FSC91 new2

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Taken: November 22, 2017
Uploaded: November 27, 2017
13

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