What silencer for MAX-11/15?

[Garrett]

Title says it all. What do you like and why? Currently the only full-auto rated .223 can I own is an old Triple-X Warrior that’s got to be at least 25 years old. It’s built like a tank and almost as heavy.

So what is everyone else using? Is back pressure much of an issue on the 11/15?

 

[Donut77donut]

I already answered you on ARF.

I’m going SandmanS, but my Omega300 works great.

Blowback is subjective and host/silencer dependent. The adjustable gas block on my 10/15 upper works well.

 

[chili17]

I have tried a newer YHM phantom, Silencerco Saker 7.62, Aklys Hawker 9mm (not rated for FA.233, but who cares), older SWR R2A2 and a HCS WHSP 7.62. Think that is it. They all sounded similar to me. The .30 and 9mm can had a slightly lower tone so they seemed more pleasant, but i do not really think they were anymore quiet. I do remember thinking that the max15 with the 10.5" barrel sounded better than a m16 with a 10.5" barrel by a little, but I'm going off of memory here. Yes, back pressure is an issue. Using a can did speed up the ROF and you would get gassed with longer burst, similar to a M16. I would turn down the Odin gas block 2 clicks to help mitigate and it did help some, but not a cure. FWIW the MAX15 really shined in 300 blackout with a 9mm can. Nice ROF with minimal gas

https://www.youtube.com/watch?v=isSlgVxVJ-c

 

[Deerhurst]

I usually run a SiCo Hybrid but also run a F1 can I built. The hybrid is a little quieter but it is also almost 2 inches longer. Back pressure is a thing. It can increase ROF slightly. All suppressors will make thing dirtier.

 

[Pharmerjohnson]

I would recommend looking at OSS (now HUXWRX) rifle cans. Lower back pressure than a traditional baffle style can, and minimal rate ROF increase.

 

[TSPC]

I get minimal gas blowback with the OSS. It's big and heavy though.


https://www.youtube.com/watch?v=YrNV-Zf7Uo0

 

[Fulliautomatix]

I plan to use my old Specwar 762 on my 10/15, haven't had a chance to try it yet, but also built like a tank.

 

[root]

I am using my F1 can built for 30 cal.
Works great.

 

[10mmlover]

I don't have my upper yet, but I've got a Dead Air Wolverine that will work well, seeing as it's made of the same hard use belt fed rated stuff that the Sandman is. That said, their new Sierra-5 might be ideal if one is buying a dedicated can for this.

 

[A&S Conversions]

For 5.56X45, I chose to buy a 7.62 can. There is no practical subsonic ammo that will function the action of that caliber. Most 5.56X45 subsonic that I am familiar with makes the rifle a single shot. There was a company that made pressed tungsten powder bullets. This ammo was around the price of bulk 50 BMG per round. I went with a .30 caliber can. The larger hole allows more sound to escape, but according to Gemtech's Dr. Dater, the one or two dB difference allows many more options. I choose a quick mount flash hider mounting system. I currently have more money in flash hider mounts than I do in the cost of the can. I have mounts on 7.62x39, 300 BLK OUT, 5.56X45, and 6.5 Grendel uppers of various lengths.

This experience is not directly with the Max- /15 series. But since since this system uses AR barrels, I thought my experience would be relevant. Since I already have a hearing loss, I always use hearing protection when using supersonic ammo. The times I have tried suppressed supersonic configurations that were supposedly "hearing safe", I still had hearing discomfort. Since most of the big suppressor companies tend to recommend barrels no shorter than 10", my 7.62 can has allowed me to shoot 5.56X45 with 8.85", 7.5", and 5.1" barrel lengths without baffle strikes.

With a barrel thread mount, keep in mind that as the barrel warms up, the barrel will need to be tightened. If you leave the can the barrel after tightened while hot,once the can is cooled, it is very difficult to remove without heat. There is also the issue of carbon build-up on the threads inside the can. The carbon and unburnt powder deposits can be so hard that the threads of the barrel and the threads of the mount can become damaged by the residue on the threads. Good luck with your can search.

Scott

 

[mak91]

For 5.56X45, I chose to buy a 7.62 can. There is no practical subsonic ammo that will function the action of that caliber. Most 5.56X45 subsonic that I am familiar with makes the rifle a single shot. There was a company that made pressed tungsten powder bullets. This ammo was around the price of bulk 50 BMG per round. I went with a .30 caliber can. The larger hole allows more sound to escape, but according to Gemtech's Dr. Dater, the one or two dB difference allows many more options. I choose a quick mount flash hider mounting system. I currently have more money in flash hider mounts than I do in the cost of the can. I have mounts on 7.62x39, 300 BLK OUT, 5.56X45, and 6.5 Grendel uppers of various lengths.

This experience is not directly with the Max- /15 series. But since since this system uses AR barrels, I thought my experience would be relevant. Since I already have a hearing loss, I always use hearing protection when using supersonic ammo. The times I have tried suppressed supersonic configurations that were supposedly "hearing safe", I still had hearing discomfort. Since most of the big suppressor companies tend to recommend barrels no shorter than 10", my 7.62 can has allowed me to shoot 5.56X45 with 8.85", 7.5", and 5.1" barrel lengths without baffle strikes.

With a barrel thread mount, keep in mind that as the barrel warms up, the barrel will need to be tightened. If you leave the can the barrel after tightened while hot,once the can is cooled, it is very difficult to remove without heat. There is also the issue of carbon build-up on the threads inside the can. The carbon and unburnt powder deposits can be so hard that the threads of the barrel and the threads of the mount can become damaged by the residue on the threads. Good luck with your can search.

Scott

I respectfully disagree with you Scott. You can very easily run 55 gr 5.56x45 subsonic full auto in the max15 or m16 for that matter. All you need is a very short gas system and be a reloader. I have 2 10 inch ar barrels configured this way and have run it in my max15.

 

[Alaska_Shooter]

Will you post build and reloading details of the subsonic uppers and loads? It would be interesting to see.

What happens if you shoot full power ammo in the subsonic upper?

 

[mak91]

Will you post build and reloading details of the subsonic uppers and loads? It would be interesting to see.

What happens if you shoot full power ammo in the subsonic upper?

I'll see if I can get a picture of one of the uppers and the gas system. Shooting full power ammo in it would not be a good thing. I have my uppers marked subsonic only to avoid confusion. Kind of like shooting 300 black out in a 223 barrel. People have done it. If you are the type of person that doesn't pay attention to what you aredoing maybe shooting is not a good sport for you.

 

[Gaujo]

I'll see if I can get a picture of one of the uppers and the gas system. Shooting full power ammo in it would not be a good thing. I have my uppers marked subsonic only to avoid confusion. Kind of like shooting 300 black out in a 223 barrel. People have done it. If you are the type of person that doesn't pay attention to what you are doing maybe shooting is not a good sport for you.

I think they are levels. There are ways to keep things simple, like spray-painting some mags orange and only using those for 300BO etc. This is also why I don't reload.

 

[mak91]

So here ya go. Couldn't find any 55 gr loaded up but found some 62 gr. Here is a video I did back when I was beta testing the max11/15. I think I only ran it with the ar15 recoil system but don't remember for sure I would think it would run with both recoils systems. Ron Williams aka RMWEXTREME built the barrel for me.

 

[A&S Conversions]

I'll see if I can get a picture of one of the uppers and the gas system. Shooting full power ammo in it would not be a good thing. I have my uppers marked subsonic only to avoid confusion. Kind of like shooting 300 black out in a 223 barrel. People have done it. If you are the type of person that doesn't pay attention to what you aredoing maybe shooting is not a good sport for you.

There is the rub. I didn't include such a barrel/gas system in my post as as such a system pictured is not an off the shelf option. Half the time that I go shooting, I am doing it with friends. I know the difference, but I could be distracted with more than one shooter. Shooting is something I enjoy as a social event as much as hitting the target. All it would take is one stray full power round and something very bad could happen withsuchan upper. I have a similar gas set from Ron Williams for direct impingement.45 ACP. Personally I don't reload. Good for you, if you enjoy it. I would love to have some 220 grain subsonic 10mm to shoot with my MP5K-10 host gun and Raptor 40. But reloading does not work for me right now. Unless the individual has the ability to do the machine work for such a barrel with a shortened gas system, I would think that it would be very hard to find a Smith willing to do such a barrel, just because of the liability alone. Many here, including myself, are impressed with your abilities. Because such an upper is something that you can do yourself, I don't think you realize how difficult it would be for the average member here to get such a 5.56X45 barrel made. Congratulations on your accomplishment.

Scott

 

[Deerhurst]

I have some 112gr 556 subs that cycle in everything I've tried so far. Decently quiet and decently accurate though really on the heavy side efor most barrels. This stuff is off the shelf. Got it at Sportsman's Warehouse a while back. It something like atomic ammo or similar. Don't remember.


I also have a setup kinda like mak's in 7.62x25mm though. I have some 110gr subs I load for it though now it's an 8" and not 16" so those probably are not subs anymore.

 

[mak91]

I also have a setup kinda like mak's in 7.62x25mm though. I have some 110gr subs I load for it though now it's an 8" and not 16" so those probably are not subs anymore.

I've got 2 7.62x25 barrels, one with a short throat and short gas system for light weight subs and one deep throated and longer gas system for heavy subs. All made by Ron. Using a mag well insert the short setup will also run in the max15's The long setup uses standard ar15 mags.

 

[Deerhurst]

I've got 2 7.62x25 barrels, one with a short throat and short gas system for light weight subs and one deep throated and longer gas system for heavy subs. All made by Ron. Using a mag well insert the short setup will also run in the max15's The long setup uses standard ar15 mags.

My upper is short throat by Heavy Metal Group. A long throat barrel would be pretty slick. I'm not familiar with Ron but I would love another barrel with a long throat.

 

[Eurodriver]

I use quite a few suppressors. AAC Mini4, M4-2000, 762SDN6, 762SD, Sandman K, Sandman S, Sandman L, Omega 36M, Omega 46M...

My favorite is the M4-2000. All my 51T cans have been converted to HUB.

If I were running subs I would just use a 300BLK barrel.