Did a search prior to posting - a question from the uninitiated.

I am not knowledgeable enough to buy a suppressor yet and more study is required; however, I have an 10.5” barrel pistol upper project I’ve wanted to pursue through Centurion for awhile, and would like to use a Surefire flash hider-adapter in this project.

My recent experience with Centurion builds was that they’re flexible with regards to parts customers send in, so I’d like to buy a Surefire for the build that will be suitable for a can (the can will come much later, of course).

My choices are between SF3P-556-1/2-28 or WARCOMP-556-1/2-28, both 3-prong.

I didn’t see any 4-prong options available on Surefire’s website.

Which one should I select?

Thanking you in advance for any help with the subject.