Griffin DUAL-LOK:
Dead Air Keymo:
AAC 51T STAMP:
but looks a little flakey? Is it?
SilencerCo ASR (see above)
Rugged RUM (see above)
Aero Precision Mantle (not available yet)
SDTA Surefire Hub:
coool!
ECCO Machine Surefire conversion service (you provide a Warden or Surefire Trainer):
also cool!
D.Wilson Surefire conversion service:
I think this is the correct link?
Correct link for the D.Wilson service
AAC 51T is I believe the oldest design on the list. It had eventual retention failures from normal wear and tear of the teeth as well as from a tiny bit of play. It also shouldn't be forced tightened to the final click. This new one post JJE (Palmetto State Armory Parent company) purchase, no clue, but I would assume same eventual issues. Limited muzzle device selections. A good option if you have dozens of firearms with 51T muzzle devices because you got an AAC M4-2000 because DEVGRU had them on HK416s during the GWOT days and don't want to buy new muzzle devices but want a modern suppressor.
Dead Air Keymo... Production quality issues lately like concentricity issues. It has wear and tear issues like broken ratchets or alignment lugs. There are a lot of aftermarket muzzle devices compatible with it. It's one of the most popular if not the most popular HUB mount so it also has a high number of user error issues regarding tightening and adjustment.
Griffin Dual-LOK - Newest design on the list (less than 1 year old I believe, and not long enough for people to have approved Form 4s). Claims are no wear and tear, lighter than Keymo. Locked to Griffin muzzle devices only but they have a large (if not the largest) selection of muzzle device types. I've also read that the primary retention is the forward taper and threads and that as long as you tighten the suppressor firmly, should you forget to turn the locking collar, it'll stay on via the forward taper. The locking collar has a learning curve, there are two positions, but only one position is the locked position. If you turn the collar the wrong direction, technically it won't be locked but theoretically the can stays on with the taper in front of the threads.
Griffin Gate-lok - supposed to work on milspec A2 flash hiders however, not all A2 flash hiders are milspec. Requires shims instead of a crush washer of course. Has rotational play on the mount (due to design, not sure if intentional) and because of the rotation play, it is supposed to be resistant to carbon locking. Really only a good option if you got a bunch of milspec birdcages and don't want to spend hundreds on mounts for multiple hosts. Edit - I made an error recommending this system in this thread. It slipped my mind that the Gate-LOK system has no taper and only a primary retention system.
Rugged RUM (dual taper system) - You don't really hear too much about this one. Limited selection of muzzle devices. Only thing I can recall which is user error is the suppressor main body loosens, but the rear taper locking collar keeps it secured to the muzzle device. It happens when the suppressor body isn't tightened firmly on the forward taper. It's also indicative of the secondary taper locking collar functioning well as a retention mechanism.
SilencerCo ASR - One of the more older designs on the list. You'd want the Bravo version which is the 1-3/8"- 24 version (aka Hub), if you don't fully twist the locking collar to the locked position, the suppressor will come loose. This a user error thing. Limited selection of muzzle devices.
Surefire - Carbon locking with instructions to unlock and then shoot the suppressor off (your can goes flyin down range). Limited muzzle device selection. Not much needs to be said about this one. Used by the Special Operations community, law enforcement agencies, etc. The muzzle devices can stay out of stock for a long time. I suppose it is the most battle proven hard use mount design.
Out of all them, I'd choose the Griffin DUAL-LOK primarily due to weight and muzzle device selection. Dead Air Keymo would normally be my first suggestion but the latest in production issues and prolonged customer service resolution to customer issues give me pause.
