Preface
As suppressors become more and more popular with the shooting public, our options as consumers continue to grow. QD Suppressor mounts are nothing new, and I’ve used a few of them over the past decade or so. Breek Arms is adding to our options by bringing us their Breek LOK QD suppressor mount. I frequently talk about the industry moving to use the standard 1.375x 24 TPI hub system, and the Breek LOK also uses this universal pattern. This allows you to use the advantages of the Breek LOK system with a huge variety of suppressors.
The Breek LOK
The Breek LOK system uses a tri-lug connecting system, which has been used with much success by other manufacturers. The hub is installed over one of their tri-lug Breek muzzle devices, and with a fairly light down pressure you twist the suppressor a couple times to lock up the hub to the muzzle device.
Inside the Breek LOK hub there are a few parts, including a sealing tapered surface that mates to an opposing surface on the muzzle device. Both of these surfaces are located down-range of the lugs and anchor points, preventing them from getting fouled by suppressor crud. Also inside the hub is a coil spring tensioner and a ball-detent to keep the hub lined up to install every time. The hub uses the 1.375×24 thread pattern that most suppressor manufacturers are putting at the breech end of their suppressors. This allows you to install the Breek LOK on most any modern suppressor, giving you quick detach and installation capability.
Installing the Breek LOK
I installed the Breek LOK system on a variety of firearms and suppressors. Mainly 5.56 carbines and suppressors I would use with them, I’d like to get another muzzle device threaded 5/8-24 so I can use it with my larger rifles as well.
After applying a touch of anti-seize to the threads at the back of my suppressor, I threaded in the Breek LOK hub. And using the included wrench I easily tightened it down. The opposite end of the wrench is made to tighten down the muzzle device, which make it very handy and convenient while working on the combination.
So far I’ve installed the Breek LOK hub into a few different suppressors from various manufacturers. Notably and shown here is the YHM R9, the Banish Meateater, the Anechoic 35M, and the GDM 556K. The hub fit perfectly into all of them, and made it quick and easy to remove and install the suppressors.
Breek LOK Operation
The Breek LOK hub functions by using the aforementioned tapered seal to keep gas within the suppressor. The locking lugs of the hub engage the opposing lugs of the muzzle device, and you simply push down and twist. There is only one little caveat, the lugs are timed. One of the voids between the three lugs is deeper, so you’ll need to make sure you line it up right prior to installing the suppressor. It might sound a little tedious, but once you figure it out its actually quite fast.
While applying pressure down to seat the taper of the hub, you give it a clockwise twist to secure the suppressor. It usually only takes two or so twists to secure the can to the rifle, but it comes off with a very short counter-clockwise twist.
One of the intricacies I found with the Breek LOK hub (besides the alignment to install part), was the outer sleeve of the hub and its ball detent. You can over-rotate the sleeve, causing it to not tighten down properly. If the sleeve is one turn too tight, it won’t go on, and if the sleeve is one turn too loose, it will hook onto the muzzle device but it won’t secure tightly. Causing a loose and dangerous baffle strike condition. This is obviously something you can avoid by familiarizing yourself with how the hub works. And keeping it in the right rotation using the ball detent.
As I mentioned, removing a suppressor on the Breek LOK hub is even faster than installing it. Barely a quarter turn or so will pop the can right off of the muzzle. But, I prefer to turn it a little more to ensure the sleeve stops by locking into the ball detent.
Consideration
I like the way the Breek LOK hub works. My biggest concern is that over time the internal parts of the hub might get crudded up causing a failure. The worst case scenario would be it getting locked up, trapping your suppressor. This should be easy to avoid by routine maintenance and cleaning. I always put fresh anti seize on my suppressor threads nearly every time I attach them or swap out hubs.
For the most part I am a direct thread kind of shooter. mainly because I shoot mostly bolt-guns or precision autoloaders. QD suppressors have never really been a huge priority for me, but I would love to have one of these Breek LOK hubs on all of my suppressors. It would make it so easy to switch back and forth from one rifle to another as well as making them easy to break down for transport. The only down-side to such a scenario might be some slightly added weight.
The added benefit of having a bunch of matching muzzles and homogenous hubs would come at some cost though. At $200 per hub, it would make the already extravagant stamp collector dig another tax stamps worth of bills from his wallet.
All that considered, I think the Breek LOK hub system would be a slick addition to any suppressor enthusiast. Especially if you are the type to run one can on various rifles. Tell us what you think in the comment section below, what is your preferred method of mounting suppressors?