Tag Archives: suppressor

Suppressed Weapon Systems MISB 308Win for the SRS

I swore off shooting unsuppressed long ago, and I only do it occasionally by choice. The suppressor bug bit me hard many years ago, and I have never vanquished its effects. With that in mind, I am always thinking about better ways to hush the noise of my favorite pastime. Who would have thought that an idea I had depreciated would turn my jaded eye.

One of my most favorite rifles of all time, is my old Desert Tech SRS A1. I have run countless barrels through it, I currently have somewhere between ten and fifteen barrels of assorted different calibers. Factory, custom, and even a few specialty barrels. Even with all those options, I still love my old 16” 308 Winchester Covert barrel. The calm and consistent performance of the 308 is like an old friend, so when I got the opportunity to try yet another great 308 Winchester option for my favorite rifle, I jumped at it.

Suppressed Weapon Systems has been in the suppression business for some time. They specialize in the integration of suppression technology directly into the firearm, instead of making the suppressor just a muzzle device. Their MISB (Monolithic Integrally Suppressed Barrel) is available for many different firearms, including my dearest SRS. The modularity of the SRS family of rifles makes it ideal to pair with technology like the MISB, and with a durable cartridge like the 308, it would last for some time.

I’ve often tinkered with the idea of an integrally suppressed barrel for my SRS, but I was always worried about spending the money on an NFA item that would get burnt out and need to be replaced. A valid concern I had always thought, but the MISB is constructed in such a way that the tube can easily be removed and installed on a new barrel/baffle stack. So with my main concern assuaged, I dove in with both feet.

The Suppressed Weapon Systems MISB for the SRS is manufactured from a Bartlein Barrel blank, well known for great quality and precise shooting. The muzzle is cut at a determined length, in my barrel’s case, around sixteen inches. But the remainder of the barrel blank is then cut into the suppressor baffles. The length of the barrel to the breach of the muzzle is fluted, and drilled, I assume to decrease weight but also to add an expansion chamber for venting high pressure gas.

The outer tube of the MISB is a good fit, but not entirely tight, this was a bit of a concern for me at first but I later learned it was necessary to free-float the barrel. Having the outer tube captured and tightened with the barrel would add stress and torque to the overall structure. The tube is sealed at both ends with what appears to be Viton high temp fluoroelastomer O-rings. The muzzle end of the MISB has a threaded cap also sealed with the O-ring, it is knurled and has cuts for torquing it into place with a tool. Its an impressive example of machining design and ingenuity.

I couldn’t wait to get the barrel mounted in my rifle chassis, and test its performance. As soon as I got home with it, I hurried to my basement man-cave and installed it into my SRS. I found the fit to be a bit snug, perhaps more-so than any other barrel I’ve tried. Its easy to get a burr on the shank of SRS barrels, one must be careful. But that was not the case with the MISB, it was simply just a bit tight. Perhaps a slightly smaller diameter would help, but I found it to be consistent, so it was a minor inconvenience. It was the same when I mounted it in my SRS A2.

Once mounted, I headed for the hills to get the rifle zeroed with this new barrel. As usual, it was an easy process. Most SRS chassis will change POI with a different barrel, but it is rarely off by more than a few inches. So a quick re-zero on my scope was easy, and in no time I was using the rifle to shoot steel at 710 yards.
SWS guarantees sub MOA accuracy for three shots with their MISB system, but suggests that 1/2 to 3/4 MOA is expected more often than not. I found my barrel to be consistent with that.

The suppression quality of the barrel was on par with what I expected. The first round pop was significant, but quickly forgotten with successive shots. The slender barrel looks very handsome in my A1 with the longer handguard. A few inches longer than a standard twenty-two inch barrel which pokes just out of the handguard. When mounted in my Covert A2, it was a few inches longer than the standard Covert sixteen-inch barrel when fitted with the DTSS Suppressor.

Conclusion
I think the SWS barrel offers a great option for those looking for a slender and inconspicuous barrel to keep things quiet. At $2200 for a barrel, it is no small investment. But it’s also not much different than a good barrel fitted with a suppressor would cost you, and SRS owners are gluttons for dropping coin on good barrels. And the fact that you can reuse the tube on a new barrel blank having no interaction with the Federal agency everyone loves to hate makes it even more appealing. I look forward to using it even more in the future.
-CBM

Yankee Hill Machine Resonator 30 Cal.

 

A long time ago, on a dry desert plain, the boys and I were shooting at a distant prairie dog town.

We all ran muzzle brakes at the time, because who wants recoil? Spotting your own hits is always handy sure, but muzzle brakes require good hearing protection. This lead to a firing line of yelling back and forth because we were all to cheap to buy electronic hearing protection. It didn’t take me long to see the value of a good suppressor.

unrepentantly stolen from YHM.net

 

My first can (as they are commonly referred to) was a Yankee Hill Machine, it was a YHM Phantom that graced my muzzle. And I still use it frequently to this day.

I never looked back after that, it seemed almost ridiculous to shoot without suppression anymore. It didn’t take long for my shooting buddies to catch on, and soon we were all running quite a spread of suppressors. After multiple begrudging transactions with the ATF, I’ve got cans to outfit everything from rimfires up to forty-fives. I cant seem to get enough of them, like most people, once I shot suppressed I never wanted anything more.

The new Resonator from Yankee Hill Machine just happened to cross my path recently, and much like it’s little brother the Turbo 5.56 I was immediately hooked. The Resonator is a QD mount suppressor, it threads onto a muzzle brake that is attached to the muzzle. It is quickly spun on, and held captive by a spring loaded ratchet to keep it from coming loose under fire. The gas is sealed by a conical shoulder on the brake, keeping carbon buildup away from the threads. The construction of the Resonator is stainless steel and inconel, and again like the smaller Turbo, the simple structure makes the can both light and cost effective.

The muzzle brake comes with the Resonator, but there are an assortment of brakes and thread pitches available from YHM allowing you to purchase extras to fit any applicable hosts.

I started out shooting the Resonator on a Desert Tech SRS A1 Covert, the rifle was currently setup with a 308 barrel. But I could have dropped in a 300WM barrel as well, the Resonator is rated for up to 300RUM.
Suppressors almost always add a point of impact shift, its almost impossible to add weight and length to the barrel without doing so. The Resonator was no different, I re-zeroed the rifle, which was now hitting several inches high at 100yds after installing the YHM. Shooting the sixteen inch 308 was much more pleasant with a suppressor on the end, and as usual the rifle seamed to shoot better suppressed. The added weight of the can, and the buffering of the report I feel are both beneficial to accuracy.

I also tried the Resonator on a Desert Tech MDR, a short stroke piston 308 auto-loader. The Resonator worked great on the rifle, keeping recoil and noise down to a reasonable level. And the YHM 4302 brake did an OK job at mitigating the recoil all by itself. Any time you put a can on a gas operated semi auto, you’ll find more gas coming out of the rifle, turning the gas settings down on the rifle made it quite tolerable.

Many times I went back and forth from rifle to rifle, letting it cool down to keep from burning myself, I couldn’t find anything about the Resonator to complain about. Sure, you can always say they should be lighter, that’s a given. But the Resonator 30 at 16 ounces is still quite light considering the price point of its competitors. I suppose if I had one request to the folks at YHM, it could be a direct thread option of the resonator. That would probably make a few precision rifle shooters happy, and maybe dip the price point a little further, who knows…

The Resonator is a great option I think for anyone looking to get into the class III market. It would work great on any AR variant, small or large frame. It works great as a companion to a precision rifle too, the price point of the Resonator makes it ideal as a first can, or as another one to add to your NFA collection. Go to YHM.net for more info.

 

-CBM

And of course, here is a video:

Yankee Hill Machine Turbo 5.56

It was SHOT Show 2017 And I found myself wandering through the many booths, filled with eye candy and toys. Being a dedicated poser, I knew I had to find something to upgrade my humble arsenal in the upcoming year. With all the places I could have found that something, who would of thought it would have only been steps away.

The Yankee Hill Machine booth is ripe with all kinds of black little goodies. Everything from AR15 parts, suppressors, to complete rifles. My first visit to the NFA club came via YHM, the first suppressor I bought was a YHM Phantom. My experience with it has always been a good one, which has led me to take a peek at some of their new products.

The new YHM Turbo 5.56 caught my eye, since I didn’t have a 5.56 can and I was in desperate need of a reason to build a host. Much to my favor, the Desert Tech MDR beat me to it, and made a perfect host for the Turbo. Click Here If you’d like to know more about the MDR.

The Turbo was made to fill a void in the rapidly expanding suppressor market. It’s stainless steel construction and design keep the cost down, opening ownership to a whole new crowd. It uses an inconel blast baffle, and a QD muzzle brake. With a size, price, and weight advantage it stands to leave much of the competition holding their forms at the door. The street price is under 500$, which is well below average when compared to other brands.
YHM has often been considered a economic choice in sound suppression, but I wanted to see if it would stand up to the cans I was used to.
The QD ratcheting teeth on the Turbo

The 1/2-28 threaded brake that comes with the Turbo, I found it very effective as a brake, and very quick to attach the Turbo to.

I tested the Turbo on two different guns, the aforementioned MDR, and also on a 10.5 inch AR15 pistol. Both guns ran perfect with the Turbo installed, there was a noticeable abundance of gas exiting the receivers of both rifles. That was no surprise to anyone, a host firearm with an adjustable gas system would easily take care of that. The excess gas coming into the receiver, did cause a little bit of extra crud build up in the rifles. But again, that is hard to avoid without cutting back on the gas volume.

Both myself and my brother were impressed with how quiet the Turbo made both of these rifles, well into the range of safe for ears. At least for my deaf ears anyways.
I wanted to see if the suppressor affected the rifle in other ways, so I fired a few groups with the Turbo installed. I was very impressed as the Turbo almost seemed to enhance accuracy, or maybe it was just the increased weight and stability. Either way, the Turbo made no harmful effect to accuracy, as the rifle shot proverbial “lights out”.

Turbo 556 Specifications:
Weight:………………………….13.5oz
Diameter:………………………1.562”
Length:…………………………….6.5”
Construction:…………………17-4 Ph SS / Inconel
Mount:…………………………..Q.D. Muzzle Brake
Decibel Rating:……………….134 dB

Rapid fire, on and off, gun to gun, the Turbo seemed to keep up with whatever we needed it to. The only problem I had at all with the can seemed to be self inflicted. I may Have overtightened it at one point, which caused the brake to come off with it one time. Requiring some excess work to get it apart, but that was my fault.
My initial impressions of this suppressor is that Yankee Hill knocked it out of the park. If you are in the market for a QD 556 can that won’t leave you broke, I don’t think you could go wrong with the Turbo 556.

-CBM