It comes with 1 beretta factory magazine. The threads under the fake suppressor are 1/2x20. Most US rimfire suppressors are 1/2x28. I ordered a thread converter with thread protector from silencer shop. It works perfectly with my SWR Spectre. A buddy got one of this batch I ordered and removed his yesterday. He ordered the converter and it works perfectly, too.

It goes from suppressed to pocket pistol in about 15 seconds. I carried it in my metal detecting vest yesterday and didn't know it was there. It's single action that you can carry cocked and locked if you want to.