School me on muzzle threads

[Micky Duck]

I was looking to try and save a bit of coin and buy a second hand supressor when it came up, even if it was a different thread than my barrel, and just have the barrel cut and rethreaded to whatever the supressor thread was. I’ll just save up a bit more and buy a new one. Or just buy a new DPT and keep the length the same for now. Take a look at the comparison pic(obviously bottom is hardy not dpt), mine is the top one. Same length barrels in both photos, but mine is significantly longer. It just feels too long in the hand, especially as half of my wallaby shooting is on the back on a canam.

Attachment 165035

now RETAKE photo with rifles properly side by side....bottom rifle is 2" further back..look at the trigger guards and ends of forestocks...