M4 Thread Mounted Suppressors

What types of thread mounted suppressors are available for the M4? A permanent attached suppressor may work for my needs with no implication of the POI shift.

Gemtech Trek.

AAC Ranger 2

I use an AWC Raider. love it. very good can

I have both a AAC Ranger 2 and a Gemtech Trek awaiting ATF approval.
I plan on doing some side by side comparisons soon.

Are you thinking of PERMING a can? If so… DON’T!

This one is pretty cheap too. I would go with the ranger, AAC is known for well made suppressors.