Question for you all on Suppressors on an AR platform

champ198

champ198

Active member
Just bought my first Suppressor. A Dead Air Nomad Ti XC.
This will mainly be used on a 6.5PRC rifle I will be deer hunting with.

My question though as this is my first can is I also want to use it on some of my AR platforms, a 223, 6Arc & 300 Blk
The 300Blk is my daughters deer rifle.
I have heard that some times adding a can to an AR can give you some blowback in the face of air like through the Charging handle etc.
What do I need to get to not have that.
Really don't want something like that to happen with my daughter while hunting.

Is it mainly around the charging handle? or are there other areas?
And if so what charging handle would be best to get to not have this?
 
champ198 said:
I have heard that some times adding a can to an AR can give you some blowback in the face of air like through the Charging handle etc.
Click to expand...
The A2 and latter version of the military series was also known for this. Wasn't a issue, although talked about. It in IMHO isn't a issue, the amount is small, and miniate.
The gas system will do this regardless if suppressed or not. If it's currently not a issue unsuppressed then probably won't bother you. If it does then a adjustable gas block will lower the amount of gas being released into the upper. This will / should bring the gas level back closer to unsuppressed released into the upper.

Think of how the gas action works the BCG key seal the gas tube, once the BCG with it's key comes back the gas tube is now unsealed then ports the remaining volume of gas into the upper. Sure the ejection port cover opening does vent a majority of the gas. There will still be some volume traveling in a straight rearward direction hence escaping via the charging handle. The AR series is a over gassed system for reliability of feeding and extraction.
To reduce the amount of blowback via the charging handle is usually accomplished by a adjustable gas block or powder selection when reloading. But yes there are certain charging handles that contain the gas better.
 
Last edited:
I have never noticed any blow back on my face, even while shooting prairie dogs. Most of mine are frankenstein builds from clearance parts. A side charger would be a safe guard against it also.
 
spotstalkshoot said:
I have never noticed any blow back on my face
Click to expand...

Same here, but then again I wear eyeglasses, it's not something I would notice.


This opens up a discussion of why the AR is harder to suppress vs a bolt action. And why some address the "Port Noise" associated with a semi automatic operation. Honestly just a nature of the beast. But yes one can reduce the volume a bit. Port noise will always be there unless the gas is turned off. (note the shooter normally hears this vs bystanders and others.)
 
Last edited:
I'd be more concerned with operation. If you're already a bit over gassed (which many off the shelf ARs are), adding a suppressor can make that worse, sometimes to the point of inducing failure to feed. This happened with a buddies rifle. Gas tube length, barrel length, and gas port size all factor into this equation.
The way to fix over-gassing is with an adjustable gas block, sometimes paired with a heavier buffer.
 
Just be careful…the TI Cans are rated for one round per second. They won’t stand up to a heavy diet of rapid fire.

I don’t notice much blowback with the Nomad30 on my ARs.
 
I don’t notice much blowback either on the SFAR, then again when I’m shooting critters I don’t notice much of anything except hearing the bullet “thump” when it hits.
 
Back
Top