[piglatinhater]

I was finally able to track down a thrad adapter for my GSG-5P. However, it is the barrel is about 3/4-1" too long. For some reason I thought the 3 lug adapter's were a perfect fit and you didn't have to cut down the barrel.

 

[piglatinhater]

Just an update from the seller: ad says zero gun smithing required for the GSG-5P (9.1” barrel) thread adapter. After calling them directly, Seller says it’s zero gun smithing involved after you’ve cut down your barrel. Cool.
Currently getting a local shop to make a thread adapter that you truly need 0% gun smithing for the GSG-5P.