I picked up my AR gas vent from Weapon Outfitters, just google "AR Gas Vent" and they are the first retailer to pop up.
Install was pretty easy, I knocked out the original FA roll pin, put in the gas vent, making sure to line up the vent correctly, and put the roll pin back in place. I used a drill bit as a improvised punch, lol
Quoted:
badass,
I am assuming that in a Magpul Dynamics Carbine 2 class you did ALOT of support side shooting.
How was it shooting support side?
Did you get massive amounts of gas in your face??
Thanks
This was one thing that everyone was quite interested in was how this vent performs with left handed users. At Magpul Carbine 2, we did indeed do a large amount of "reaction side" shooting where i shot my rifle as if I were left handed. I did not notice the gas vent at all during shooting, and it was only in retrospect i realized I hadn't gotten blasted in the face with gas.
I'm thinking that the vent shoots gas to forwards as well as to the right. I'll be sure to try it again and try and figure out exactly what's going on, but yeah, i didn't get blasted in the face with gas, lol
Reviewing the results, i think the main thing one wants to do is to reduce gas blow back pressure in the upper receiver before it gets to the charging handle. The PRI's biggest flaw is that the escape channel is cut into the charging handle itself. By the time the the blowback gets to the escape channel in the charging handle, the gas is just as inclined to escape under the charging handle and deliver carbon and gas onto your face.
The AR gas vent gives a larger channel for gas to escape farther up the upper receiver, and that's why less gas shot under my charging handle and i avoided gas face