Contemplating on buying a H&K USP 9SD for it's threaded barrel and adjustable sights. I read up that the thread pitch is 13.5x1 LH. I currently am waiting for my Form 4's to be processed for an AAC ECO 9 that has a thread pitch of 1/2x28. Looking on silencer shop I see AAC sells different pistons and one of them is the 13.5x1 LH.
I just wanna make doubly sure before I buy or order anything that if I get the USP and order the piston that matches the thread pitch on the H&K that is all I will need to run it on the gun?
I just wanna make doubly sure before I buy or order anything that if I get the USP and order the piston that matches the thread pitch on the H&K that is all I will need to run it on the gun?