Ask the Community

Hi Stephen and welcome. Yes, the barrel is threaded 1/2 x 28 tpi. Cheers, stay safe and enjoy!

Yes, the barrel has 1/2 x 28 tpi threads

Good evening to you!! The SIG Sauer M400 does have a removable flash suppressor which exposes 1/2x28 threads which will allow direct mounting of a suppressor. Hope this helps Have a good rest of your day.

Hi Stephen, yes the barrel is threaded 1/2 x 28 Stay safe & have a great day!