My name is George and I purchased A M4-1000 suppressor for my AR-15 about ten years ago. Since then I sold my AR-15, but looking to buy another AR-15 in the near future. Id like to get a new flash hider so I could still use my M4-1000 once I get a new AR-1. I honestly don’t remember what type of flash hider I got for my AR when I got the suppressor, I’m pretty sure it was a fast attached one, but other than that I’m not sure. I know they don't make the M4-1000’s anymore but wasn't sure where you guys would suggest to find one. Waiting to hear back from an e-mail sent to AAC.

I ran across this looking for a similar answer for the 07 M42000. It is an 18 tooth flash hider. They are a little pricy and a little harder to find but that is what you need.