I have two Dead Air Armament suppressors including a SANDMAN-S and SANDMAN-L. I've been using the -S on my AI AW currently chambered in 6.5 Creedmoor. Accuracy is outstanding with a nice velocity boost but it's not particularly quiet compared to the AAC MK13-SD on the .308 Win barrel on the same AI AW. I'm going to try the -L this weekend to see if it's better but my guess is that the .264" cal bullet simply allows more gas to get around it resulting in more noise. I'll be testing the -S on my POF P308 soon, but with that heavy bolt banging around it's not exactly hearing safe, or at least not with the AAC 762-SDN-6 that I currently use on it.
The KEYMOUNT QD system is a good design and has proven to be rock solid. I've shot hundreds of rounds without ever needing to tighten the suppressor, and if it needs to come off it's easy to remove.
The KEYMOUNT QD system is a good design and has proven to be rock solid. I've shot hundreds of rounds without ever needing to tighten the suppressor, and if it needs to come off it's easy to remove.