Suppressors M4SD II 5.56mm Sound Suppressor (new product)

[HPLLC]

They took forever, but the first run of M4SD II's are finally here.

Because a lot of people are asking, I'll recap- these are fully welded 316 Stainless steel and high strength 17-4 PH stainless steel, with a 100% heat treated 718 inconel baffle system. They weight 18.8 ounces, they have wire EDM bores and high tolerance machined mounting systems. This technology allows them to reduce the sound signature by 97% and to have minimal and repeatable POI shift. They are really top of the line.

The flash suppressor in the photo is just spun on- it's not mounted with the wrench flats vertical which is the case for all the other devices (A2, M4SD II comp, M4SD II Brake, M4SD II flash comp). So the locking gate will actually be oriented left or right of the gun for most end users.

Thanks to the pre-order people for their incredible patience and for making the run possible. We appreciate you guys helping a couple veterans realize a dream to make great sound suppressors.

Every suppressor comes with a free 3x2 flag sized velcro Griffin Armament patch made by Mil-Spec Monkey. Thanks to Mil-Spec Monkey for the patches and for facilitating the design and production of a nice companion product!

 

[Charger442]

Re: M4SD II 5.56mm Sound Suppressor (new product)

man, i cannot wait to get to see this thing at my dealer. its been a long wait but im excited to see what this thing can do and the fit and finish of it, as well.


post more pictures if you have them.

 

[JMC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

Very nice! They look great and I hope to purchase one in the future.

JMC

 

[HPLLC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Charger442</div><div class="ubbcode-body">man, i cannot wait to get to see this thing at my dealer. its been a long wait but im excited to see what this thing can do and the fit and finish of it, as well.


post more pictures if you have them. </div></div>


RSTA's are scheduled to be painted this week. We'll get pictures when we have them painted.

Evan's going to try to get some video also. He and Nick are going to be visit the SHOT show this year and we're trying to accomplish a few things prior to that and the video would be part of that.

I think about half of the orders are going out tomorrow, the rest later in the week and the RSTA's early next week hopefully.

There a few major reviewers with our muzzle devices right now and they are pushing to get their reviews complete prior to SHOT also.

I'm pretty excited about the suppressors- they really look great.

 

[Pusher591]

Re: M4SD II 5.56mm Sound Suppressor (new product)

How much do the these run and what's there availability? Are these cans oriented more for precision work or battle work? Shoot me a PM if you'd like, I like this can alot.

 

[HPLLC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Pusher591</div><div class="ubbcode-body">How much do the these run and what's there availability? Are these cans oriented more for precision work or battle work? Shoot me a PM if you'd like, I like this can alot. </div></div>

We have some thread over brake mounted 5.56, 30 cal and .338LM suppressors coming in a couple months.

These are carbine cans- they could be put on a precision rifle using one of our mounts and I don't think there would be any major accuracy issues because our mounts are OD ground and the fit is snug, but realistically these aren't going to be the equal of thread mounted suppressors for precision rifles. They may create a 1/2MOA of increased group dispersion or something like that. The baffling in these is pretty high performance to the effect that we were able to open the bore .020" over the previous model and actually gain performance significantly simultaneously, and larger bores result in reduced POI shift and reduced negative impact to accuracy.

Because these production units are new and I haven't had the opportunity to shoot them, and have only shot prototypes, I can only relate experience from other products with slip fit mounting systems that I have experience with.

In Iraq in 2005 I had a KAC M4QD and it caused a 1.75MOA shift down on my SPR. It also opened groups from 1.2MOA to about 1.75MOA. This was with M855 which people say is 3MOA ammo, but I was shooting 5 shot groups and most of the time I could hold them in those group sizes at 100 meters. MK262 was not readily available in the system at that time and for all I know may still be hard to get. I was a designated Marksman then, and rules were kind of gray and I own my SPR upper and was able to get it back, and I'm going to use my M4SD II on it. <the KAC can worked, this can will work if better.

Our mounts are tighter than that suppressor IMO. I have handled but not shot Army NT-4's and they fit more like our cans on our mounts.

The NT4's major changes as I see them are the .015" larger bore, the tighter mounts, and the addition of a roll pin to keep the redundancy latch from rotating by itself.

Those first two changes have everything to do with the POI shift requirement which I believe became 1 MOA for that contract which the NT4 did win.

As far as MSRP that will be $1050- We have MSRP, MAP, and Dealer pricing and we want these to be a successful product for dealers. One of the problems with the suppressor industry has been national dealers that blow cans out the door $25 over dealer, those guys do well for themselves, but a lot of regional dealers call and say they are ruining the suppressor industry by making it impossible for them to make a profit. We want dealers to keep their SOT's, because they are a necessary link to the customer, and MAP pricing will help in our opinion. If regional dealers quit keeping SOT's or keep them solely for their own toys, it won't matter if the national dealer is able to sell a can for $25 over dealer cost- there won't be a transferring dealer to get it across state lines and to the customer.

 

[HPLLC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

Evan tested the production M4SD-II suppressors today with M855 62 grain green tip on the range (B&K 2209 meter 1M left of the muzzle testing).

Un-suppressed M4 avg of 10 rounds:
14.5" M855 1M Mil-std/Flash Comp 168DB

Suppressed M4 avg of 10 rounds:
14.5" M855 1M Mil-std/M4SD-II 134DB (or -34DB) FRP=132DB

Suppressed MK18 avg of 10 rounds:
10.3" M855 1M Mil-std/M4SD-II 139DB (approx -29DB)

The 10.3"/M4SD-II combo put one round over 140 and that was 140.5DB.

These numbers basically mirror our prototype which slightly outperformed the KAC NT4. In that former test, the NT4 averaged 138.5DB on the 14.5" barrel with M855 ammo.


He's going to be putting a video together, and I'll post that when we have it.


He also POI tested the M4SD-II suppressor on the 14.5 with 55 grain ammo (which is more accurate than steel core M855.)

<span style="font-weight: bold">The POI shift with the suppressor attached was 1.3MOA almost exactly straight DOWN.</span>

 

[slowkota]

Re: M4SD II 5.56mm Sound Suppressor (new product)

Hmmmm...

M4SD II or Surfire SOCOM556-RC

Decisions Decisions! lol

 

[11B-B4]

Re: M4SD II 5.56mm Sound Suppressor (new product)

I think the poishift is actually less than 1.3
That was magazine supported prone with an agog after I had been running all over the range because we were crunched for time. Next time I go out out I'm doing poi test on an spr with a leupy 2-8x on a bipod with a sandsock and a lower heartrate.

The new can is kick ass

 

[RangerWalker71]

Re: M4SD II 5.56mm Sound Suppressor (new product)

When am I getting mine??

 

[11B-B4]

Re: M4SD II 5.56mm Sound Suppressor (new product)

We are shipping FDE units in a day or two.

 

[Charger442]

Re: M4SD II 5.56mm Sound Suppressor (new product)

Ok got to go visit my suppressor at the dealer today and do my Form 4. The thing looks really great, and i hope it performs and locks up just as great as it looks.

That being said, maybe there can be a little better explanation here. I tried mounting the can on a rifle with an A2 FH on it and was not successful, one reason was probably because i didn't put the stop tab/washer under the A2. but even still, shouldnt i be able to mount the can to the wrench-flats on the A2?

i am just hoping it will be locking up very rock solid, once the tab is installed. is that stop washer the only way it can be mounted? next time i go to the dealer to do some paperwork, i take my upper that has your M4-SD Compensator installed and hopefully will be able to fit it to that.

anyway, i have 6 months to get it all figured out.

 

[HPLLC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Charger442</div><div class="ubbcode-body">Ok got to go visit my suppressor at the dealer today and do my Form 4. The thing looks really great, and i hope it performs and locks up just as great as it looks.

That being said, maybe there can be a little better explanation here. I tried mounting the can on a rifle with an A2 FH on it and was not successful, one reason was probably because i didn't put the stop tab/washer under the A2. but even still, shouldnt i be able to mount the can to the wrench-flats on the A2?

i am just hoping it will be locking up very rock solid, once the tab is installed. is that stop washer the only way it can be mounted? next time i go to the dealer to do some paperwork, i take my upper that has your M4-SD Compensator installed and hopefully will be able to fit it to that.

anyway, i have 6 months to get it all figured out. </div></div>

The stop washer will help you index it. Evan is making a mounting video that will help people understand the very simple concept of the mounting system.

Basically once, you have the groove located (something the stop washer will help you do) you drop the locking gate and the flat needs to be parallel to the top of the locking gate in order to fully seat the gate to the point the spring locks it down. A quick attempt to twist the suppressor will confirm or deny the locked engagement of the spring and then you can shoot provided the gate passed that rotational test.

In some really rare cases you might have an A2 that is out of tolerance- either too large of an outside diameter, or to narrow a groove to permit the locking gate to fit. That should be the extreme minority like 5% of the time. The solution then is a replacement $6 A2, or a proprietary mount guaranteed compatible.

As far as tightness of the mount, that depends on the tolerance of the muzzle device and suppressor. Our muzzle devices are OD ground for a very snug fit- the suppressor bores are jig ground for again a very snug fit with our muzzle device. A2's vary from an interference fit (incompatible) to .0035" of tolerance- they have a .004" tolerance range and we wanted the suppressors to be relatively snug. There is about 15 degrees of rotational play, but almost no, or no wobble at all. We tested one and it was shooting 1.75" groups at 100 yards magazine prone with a 4X Acog and 55 grain XM193, and POI shift was a minimal 1.3MOA down on the M4 barrel we tested. That's pretty much the accuracy of that barrel.

These aren't any less solid than suppressors like the KAC NT4 and M4-2000. They are snap on carbine suppressors and they operate similar to other options in their class.

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[HPLLC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

BTT Added pictures.


Evan is getting pretty good with his camera- I'm amazed by the photography coming from him these days.

 

[JMC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

Are any of your mounts long enough to allow pinning on a 14.5" barrel and still making the 16" needed to avoid an extra stamp? Preferably a flash hider that will also serve as a suppressor mount.

 

[operatorj]

Re: M4SD II 5.56mm Sound Suppressor (new product)

Are you going to continue making your original M4SD suppressor for the poorer of us out here. Just wondering because i am really hoping to order one when i get my tax return back next year.

 

[HPLLC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JMC</div><div class="ubbcode-body">Are any of your mounts long enough to allow pinning on a 14.5" barrel and still making the 16" needed to avoid an extra stamp? Preferably a flash hider that will also serve as a suppressor mount. </div></div>

We do make a 2.25" OAL flash suppressor that can be permanently attached. It offers several times better flash suppression than the A2, but that is more useful on barrels that are shorter than 14.5 inches like 10.5's. The flash on the rifle barrel is fairly moderate to begin with.

We also make a product called a flash comp that is as effective as an A2 flash suppressor on 14.5" and longer barrels but also reduces 50% of recoil and 100% of muzzle rise.

The Flash Suppressor, Flash Comp, and Brake are all 2.25" OAL for 14.5 perm builds.

 

[HPLLC]

Re: M4SD II 5.56mm Sound Suppressor (new product)

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: operator j</div><div class="ubbcode-body">Are you going to continue making your original M4SD suppressor for the poorer of us out here. Just wondering because i am really hoping to order one when i get my tax return back next year. </div></div>

We're unfortunately not going to be making that model any longer. The M4SD-II is basically a many facets improved version.

A M4SDK 5.75" OAL, 14.5 ounce version will be $50 lower cost and will probably outperform the 6" M4SD original model you are referring to.

We are in the process of also bringing out a thread over brake mounted 5.56mm suppressor that will be more affordable, and we may even bring out a third model as well that would mount to the same mount but would share the M4SD II baffle system as well as the military style appearance, where the can we are bringing out sooner will be more of a precision rifle/sporting- look suppressor.