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Etho

Etho’s Ghetto AR Vent

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So my last suppressor was approved. It’s going to live on my 10.5” LMT. It’s probably the best suppressor I’ve used and it really tames that 10.5” AR.

Anyhow, we all know the biggest downside of an AR is also one of its big bonuses. The DI gas system. It shits where it eats. What also makes it reliable, soft shooting and ridiculously accurate, also makes it filthy. It gets exacerbated by being suppressed. All that gas gets blown wherever it can go. Enter suppressor vents. 
 

A few places make these. Supposedly they make a huge difference. It replaces the forward assist, which is useless anyway. But that’s another debate for another day. It allows an easy avenue of escape for the gas. After cleaning it tonight I was willing to try it. But I didn’t want to pay $30 or more for a plug. Especially when I have perfectly good and useless FA sitting there. 
 

So push in the FA and drive out the roll pin. The assembly comes out. Save the spring. Secure the assembly, drive out another roll pin holding the pawl in the assembly. Now it’s as far down as you can get. Use a scribe or pick to clean out the channel for the pawl. 
 

If you look at the now stripped assembly. You’ll see a bump where it rest against the pin. That faces to the rifle. Go toward the back on the button but 90 degrees down. You’ll need to bump a dot on there and then drill with whatever size you want. I think I used a 7/32. It’s gonna go kinda easy. But you’ll tell when it makes it to the channel. 
 

Now the same channel for the pawl needs to be opened up. Using the same bit, drill in at an angle toward the hole you just made. It should naturally go that way. 
 

Voila. You made a vent. Blow it out, clean it out. Reassemble. 
 

 

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Its a pretty good mod.  It makes a  bit of sense.   Could also  try wrap some tape around your buffer so it acts like a plunger and suck back more gas to you vent hole.

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5 minutes ago, Meke said:

Its a pretty good mod.  It makes a  bit of sense.   Could also  try wrap some tape around your buffer so it acts like a plunger and suck back more gas to you vent hole.

Nah. This has to be reliable as I use it at work. Can’t take a risk on that sort of thing. 

Edited by Etho

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Do you have one of those suppressor specific charging handles? 
 

No suppressor for me, so no idea. 

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7 hours ago, Drck said:

Do you have one of those suppressor specific charging handles? 
 

No suppressor for me, so no idea. 

Nah. Gas doesn’t bother me. I just want somewhere for it to go in an attempt to be a bit cleaner. 

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10 hours ago, Etho said:

Nah. Gas doesn’t bother me. I just want somewhere for it to go in an attempt to be a bit cleaner. 

I was just wondering how big a deal the gas blow back was. I’ve shot some suppressed, but don’t remember it being a big deal. Or at least wasn’t line “holy shit that sucks”. Maybe I was just so enamored with shooting what I can’t have. :( 

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19 minutes ago, Drck said:

I was just wondering how big a deal the gas blow back was. I’ve shot some suppressed, but don’t remember it being a big deal. Or at least wasn’t line “holy shit that sucks”. Maybe I was just so enamored with shooting what I can’t have. :( 

I mean it’s noticeable. But not tremendously. Full auto suppressed is another matter. 

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Never heard of these until now. Agreed on FA blowback I had a black streak from doing a mag dump on a guy's suppressed upper on a RDIAS lower after the last run and gun. Nothing more fun though lol

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That’s pretty clever. Hope it works out well. 
 

You ever think about cheating and trying a piston kit? My cleaning got way easier after one of those. Granted, your mod is a whole lot easier and cheaper 😄

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7 hours ago, JRed said:

That’s pretty clever. Hope it works out well. 
 

You ever think about cheating and trying a piston kit? My cleaning got way easier after one of those. Granted, your mod is a whole lot easier and cheaper 😄

I considered a piston upper, but I’m just too cheap. 

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Only problem with piston system is it limits your hand guard choice a lot of times. I like the skinny midwest and bcm rails and you can't run a piston on those

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On 5/9/2020 at 12:49 PM, Etho said:

I mean it’s noticeable. But not tremendously. Full auto suppressed is another matter. 

Ahh.  Good to get feedback from someone I respect.  I've heard so many say that it's an issue, but no real idea on context.  Are they a fudd that stare at anyone who shoots semi-autos because they "throw brass"?  That's different.  :lol: 

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6 hours ago, Drck said:

Ahh.  Good to get feedback from someone I respect.  I've heard so many say that it's an issue, but no real idea on context.  Are they a fudd that stare at anyone who shoots semi-autos because they "throw brass"?  That's different.  :lol: 

The gun world is a fickle bitch. People get jacked up about weird shit. At the end of the day they are machines. Some stuff is just gonna happen sometimes and we gotta deal with that stuff. 

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I've only got to do suppressed full auto once and I walked away with the black stripe on the cheek. This definitely would've helped 

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Well I finally got to shoot it today. It seems to have worked. I don’t have time tonight to clean it up and double check. But I will tomorrow. I’m also going to remove the FA and see just how much routes that way. 

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