Suppressing an M1 Garand

[timshufflin]

Okay, I have all sorts of ways and ideas to suppress a Garand. I've even had a customer, about 6 years ago or so, do it with a Mini-G. Michigan now allows suppressors for hunting, that means I want in the game. What I'm hearing about, no pun intended, is that there is some sort of pressure or gas wave that blows back into your eyes when doing this to a Garand.

Can anyone help me with this? Anyone know why this is? I only know what I know and I've not threaded the first suppressor on a firearm.

[Orlando]

Tim
Isnt that a issue with any semi auto suppressed rifle?

[centurion20000]

Couldn't you just chop down a T-37 Flash hider and machine some outer threads on it to mate up with a suppressor?
Then just adjust your gas plug and go.

At least that's how I might approach that problem. YMMV.

[timshufflin]

I don't know. I don't know enough about this suppression science yet. I'm just getting started.

[timshufflin]

Couldn't you just chop down a T-37 Flash hider and machine some outer threads on it to mate up with a suppressor?
Then just adjust your gas plug and go.

At least that's how I might approach that problem. YMMV.

Perhaps this can be done BUT what of the "blow back" people say they get when suppressing these rifles? I'm trying to understand the why's for this and also if suppressor design influences it.

[timshufflin]

https://www.youtube.com/watch?v=kwA-5aypuME

[timshufflin]

I'm posting these M1A videos because I'd think they'd compare to the Garand.


https://www.youtube.com/watch?v=I9J8gd0z6tA

[timshufflin]

This guy talks about the gas "in the face".



https://www.youtube.com/watch?v=-18XtGbo3YI

[timshufflin]

https://www.youtube.com/watch?v=rYMoOXNzvmA

[Orlando]

Tim
I did some reading on this years ago and from what I remember blowback of a suppressed semi auto is the nature of the beast. I beleive it can be tamed some with a adjustable gas screw, but I am no expert

[garandtom]

https://www.ar15.com/forums/t_1_5/1747261_.html

Here Tim I found this. Hope it helps!

[timshufflin]

https://www.ar15.com/forums/t_1_5/1747261_.html

Here Tim I found this. Hope it helps!

Thank you!

Edit, that's the page Greg sent me. Thank you both.

[Art1]

I have been trying to intrest someone to fabricate one, no luck.
If you can it going, I will surely pick up a couple.
I have lately been distracted by suppressing a M1a & Socom M1a, really good stuff.
Wishing you good luck. Art1 The Schuster plug, works well on the blow back.

[Greg]

Tim, I have several suppressors. I use the Saker 7.62 on my M1A, HK93, and several short barreled AR15's. I haven't had any issues with gas blow back in my face. I am a lefty so I should have it worse than the right handed shooters. I belong to several forums and have heard the same comments over and over again. Some of the platforms that I shoot I hear people complaining about. I really don't get it unless you are super sensitive. I have shot thousands of rounds through my suppressors and issued suppressors, so if there was a major issue I would have encountered by now. I have thought about having a mount made for my Mini G but you have to get the threads absolutely concentric with the bore. Using an existing flash suppressor to mill down has a risk of having a baffle strike because the tolerances might not be tight enough. I would highly suggest using a flash suppressor alignment gague before shooting through the suppressor. If you work it out I would love to have one for my Mini G. I would definitely be on a list for one.

[Parga]

That's one of the reason the piston ARs are popular for suppressors. What gas isn't needed, gets vented out. The M14 should be a bit better than the M1 in that respect because of the bleed hole in the gas cylinder. You might check out OSS suppressors. They're quite unique in their design since they don't use a baffle type system

[timshufflin]

That's one of the reason the piston ARs are popular for suppressors. What gas isn't needed, gets vented out. The M14 should be a bit better than the M1 in that respect because of the bleed hole in the gas cylinder. You might check out OSS suppressors. They're quite unique in their design since they don't use a baffle type system

On my Garand's, what gas isn't needed is also vented out. I use a Schuster.

[Flyer]

Suppressed gas piston ARs are popular because they don't dump so much gas in to the receiver.

The main problem seems to be that the suppressor creates lots of dwell which means the bolt opens before the gas pressure in the barrel gets vented at the muzzle so you get gas blowing out at you through the chamber.

There isn't much you can do about that unless you managed to somehow tap the gas past the suppressor. Maybe an integral barrel suppressor could do that but it would probably not work with standard ammo.

Thinking about an integral barrel suppressor, maybe you could make one that is built in the shape of the gas block and front hand guard and has the gas block built in to it. Not a simple project.