Shroudless
If you have a bare barrel in the Challenger .30 it has M14x1 threads. Any of our .22-30 suppressors can fit directly on the barrel IF you have a M14x1 threaded cap. This is a custom threaded cap. When you purchase the suppressor select the 1/2x20 option and add a note at checkout that you need the M14x1 threaded cap. We will not charge you for the custom work on this.
We recommend the Ronin .30 1/2x20 #S18 for the Challenger .30.
https://donnyfl.com/collections/ldc/products/2-x-6-5-inch-ronin?variant=41534539652
Challenger .30
For the shrouded challenger .30 you will need adapter #A83. This has the 1/2x20 thread.
https://donnyfl.com/products/aea-challenger-357-m18x1-adapter-a81?_pos=1&_sid=ebdf6652e&_ss=r&variant=39360145489963
I recommend the Ronin .30 1/2x20 #S18.
https://donnyfl.com/collections/ldc/products/2-x-6-5-inch-ronin?variant=41534539652
Challenger .357
Shroudless
If you have a bare barrel in the Challenger .357, It has a M14x1 threaded barrel. Any of our .357 suppressors will fit directly on the barrel With a M14x1 threaded cap. This will need to be a custom threaded cap. When you purchase the suppressor add a note at checkout that you need the M14x1 threaded cap.