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Posted: 4/16/2015 2:26:44 AM EDT
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Who has Vented FWD assists on their ARs??? Worth it or no? After running several of my ARs Suppressed (10.5", 12" 18") and having several people complain about the ""Gas Face", I figured I'd look into doing something... I've found them at a few vendors, like Weapon Outfitters and Rainier Arms but it seems like Simplistic Shooting Solutions are the only one and they are about 38-40.00 ea... |
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Quoted:
I run the forward assist vent thingy and gas buster charging handle and it seems to make a difference. Still get the blowback, just not as much. /\ this a gas buster or rtv'd charging handle (bcm gunfighter) will make more of a difference than the vent but if you pair them together it works out pretty good. |
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Where exactly do you apply the RTV??? Does this effect the motion or smothness of the motion if that makes sense??? Anyone got pics of this??? Also, GOOD LAWD, does shooting suppressed grime up the works faster!!! I used to be able to get 5-600 hundred rounds of cheap ammo though my SBRs without it starting to get "Gritty"; can't say that now... Even my bolt gun starts getting gritty a lot sooner ... Granted its a .22 and those are a mess anyway, powder wise.. |
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Poor Man's Gas Buster
There's also a mod where you drill through the side of the charging handle at the back to divert gas from one side to the other, but I can't find it right now. |
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I just use the RTV method and I find it tolerable. Even on my 10.5"
Some gas does come back but its not bad at all. I'd say try the RTV method because it's so cheap. Then if it still is not what you want consider an adjustable gas block or w/e else you think may work for you. |
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The RTV plus the small hole in the CH is the quick and easy band-aid until you decide to fix it the right way.
Quoted:
There's also a mod where you drill through the side of the charging handle at the back to divert gas from one side to the other, but I can't find it right now. Here's one version. |
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Quoted:
It irritates me that they made the gas vent look like a forward assist. I bought one, but I use other means to mitigate gas. I won't buy another. 
The whole point is that it looks like a forward assist. Otherwise you could just remove your forward assist if that's all you're going for. |
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Quoted:
The RTV plus the small hole in the CH is the quick and easy band-aid until you decide to fix it the right way. Here's one version. Quoted:
The RTV plus the small hole in the CH is the quick and easy band-aid until you decide to fix it the right way. Quoted:
There's also a mod where you drill through the side of the charging handle at the back to divert gas from one side to the other, but I can't find it right now. Here's one version. I did this to all of my BCM CH and can't tell a difference. I have not done the RTV method as I have the newer version of the BCM CHs and couldn't see how it would work. When I first put my Saker on my 10.5 5.56 for the first time I was just like wow this sucks. I'm breathing in all this gas. F suppressors! Then I got a few adjustable gas blocks and its GTG now. The only remidy to fix gas to the face is an adjustable gas block or some sort of gas adjusting device. |
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I have not tried it but my BCM charging handle helps a lot compared to the standard charging handle. Unfortunately shoot suppressed created extra back pressure and makes the gun dirty.
Keep in mind that any time you add holes and allow gas to exchange from the internals you will increase the noise of the firearm. Again I don't have one of those vented forward assists but but piston systems which do away with the internal has and fouling issue are louder than the DI system. The vented forward assists are fairly cheap, buy one try it out and give us a review. 
Also might want to look into an adjustable has block, if it's throwing that much gas in your face it probably is over gassed. |
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Quoted:
The whole point is that it looks like a forward assist. Otherwise you could just remove your forward assist if that's all you're going for. Quoted:
Quoted:
It irritates me that they made the gas vent look like a forward assist. I bought one, but I use other means to mitigate gas. I won't buy another.
The whole point is that it looks like a forward assist. Otherwise you could just remove your forward assist if that's all you're going for. Speaking of.... has anyone gone this route? I'm thinking of just removing the forward assist from my 14.5 and 12.5. |
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Quoted:
Poor Man's Gas Buster There's also a mod where you drill through the side of the charging handle at the back to divert gas from one side to the other, but I can't find it right now. Thats what I did for my 300 |
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I'm not real keen on dropping $39 per gun on this. Can we just ghetto fuck the F/A with a drill bit and knock the edges off with a file/sand paper? |
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Quoted: Wouldn't an adjustable gas block fix a lot of problems? Quoted: Wouldn't an adjustable gas block fix a lot of problems? Venting gas through the forward assist, gas deflecting charging handles and heavy buffers only address the symptoms of the problem and not the source of the problem which is overgassing. None of those options are going to reduce the excess fouling coming into the action coming from the gas tube and then into your face. Using the optimal amount of gas to cycle your gun means less fouling into the action while suppressed and when it does get too fouled to run, you then have the OPTION to go up in gas settings to run even longer before cleaning. Below is highspeed video shot at 480 FPS showing the same 10.5" upper running suppressed with M855 and full auto 10 rounds each. Top one is unregulated and the bottom one is regulated. Both start shooting at the same time but the regulated one has 3 rounds left to fire after the unregulated has cycled through the 10 rounds. You can see the unregulated one is blowing a bunch of gas out of the ejection port and it also has more recoil as the BCG is bottoming out. You don't see any gas coming out of the ejection port on the regulated one and it is softer shooting.  Video below you can see the gas coming from the ejection port when suppressed with full gas then the lack of the gas coming from the ejection port when regulated. Quoted: Or dare I say a piston system? Even with a 'front end' 'piston' system it is still dirty since a lot of gas does come from chamber/bore. This is discussed by the late Noveske here: http://www.defensereview.com/noveske-rifleworks-n4-light-recce-carbine-john-noveske-interview-part-one/ |
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Quoted: Is there a good thread on how to tune the Govnah? Those options and tuning is discussed on my website here: http://micromoa.com/which-govnah-should-i-use/ It's been discussed several times but can't think of a good thread on it. One of our customers did a good video also here: The only thing I'd add is that he did all his testing by just having the bolt lock back but I personally think that just means you are getting close. After you get bolt lock back you should then test with 1 round in the chamber then insert a fully loaded mag for additional resistance on the bottom of the BCG and I do all my testing dry as well. More videos listed on the site here:http://micromoa.com/videos/ Thanks! |
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