Not so duty AR cans?

[ElPollo]

I’ve been looking at cans for an 11.5” carbine-length gas gun. There are Avogadro’s number of AR cans on the market and there is a ton of innovation going on at the moment. The Duty Can thread was helpful, but I don’t really need or want a 12-16 oz duty can that will handle 60 rounds at cyclic. I don’t have super high expectations on sound suppression given that port pop is pretty unavoidable. I would like to keep the weight down without going ultra lite and minimize gas blow back as much as possible. What would y’all recommend?

Here’s what I’m working with. I have an 11.5” Criterion Core barrel, with an H3 buffer and a Geissle braided super 42 spring. The gun currently has a fixed gas block, but I have a Superlative Arms adjustable gas block that I can swap over if needed.

Thanks in advance.

 

[RMM]

I just got an Ab A-10 out of jail for my AR. Not super light but its full auto rated, and for the price, cant be beat. I did go with the 7.62 because its going on a 300blk sbr at some point.

 

[ElPollo]

I just got an Ab A-10 out of jail for my AR. Not super light but its full auto rated, and for the price, cant be beat. I did go with the 7.62 because its going on a 300blk sbr at some point.

AB does make great cans. I have a Raptor 8-stack. The A-10 5.56 is my default plan, especially given the cost. Wondering if it’s worth it to consider any of the newer low-back pressure cans. Many of them are pretty pricey. Most are pretty heavy.

 

[WoodlandCritter]

I’ve been looking at cans for an 11.5” carbine-length gas gun. There are Avogadro’s number of AR cans on the market and there is a ton of innovation going on at the moment. The Duty Can thread was helpful, but I don’t really need or want a 12-16 oz duty can that will handle 60 rounds at cyclic. I don’t have super high expectations on sound suppression given that port pop is pretty unavoidable. I would like to keep the weight down without going ultra lite and minimize gas blow back as much as possible. What would y’all recommend?

Here’s what I’m working with. I have an 11.5” Criterion Core barrel, with an H3 buffer and a Geissle braided super 42 spring. The gun currently has a fixed gas block, but I have a Superlative Arms adjustable gas block that I can swap over if needed.

Thanks in advance.

I bet a mole of AR cans is pretty gd heavy

 

[Bowfinn]

I’m in a similar position as the OP. Has anyone compared the a-10 in 762 and 556 versions on a 11.5ish barrel? If so any preference/differences between the two?

 

[WoodlandCritter]

I’m in a similar position as the OP. Has anyone compared the a-10 in 762 and 556 versions on a 11.5ish barrel? If so any preference/differences between the two?

I haven't used that one in particular, but I can tell you that .30cal cans on a 5.56 generally suck. If I could go back in time, I would buy a separate can dedicated for .224cal instead of falling for the .30cal general purpose meme.

 

[Bowfinn]

I haven't used that one in particular, but I can tell you that .30cal cans on a 5.56 generally suck. If I could go back in time, I would buy a separate can dedicated for .224cal instead of falling for the .30cal general purpose meme.

Thanks, I would be leaving this can on the 11.5 so not looking for a do all. The price on the A10s are hard to beat and that’s what has me curious about them.

 

[Formidilosus]

I haven't used that one in particular, but I can tell you that .30cal cans on a 5.56 generally suck. If I could go back in time, I would buy a separate can dedicated for .224cal instead of falling for the .30cal general purpose meme.

How do 30cal cans suck on 5.56mm AR’s?

 

[MT762]

For the reasons you are describing (port pop) it's fairly hard to go wrong. Also I would recommend you drop $19.99 on a YHM "suppressor" gas block. It's got a .062 port (from memory) and at least in my experience it's a good long term solution to set the gas without having to depend on an adjustable gas block. The restricted gas tubes also work well but they are 3x the price. I use both.

Some of the old school 30 cal cans had way lower back pressure than the old school 556 cans, to the point where I still run some on my ARs.

 

[WoodlandCritter]

How do 30cal cans suck on 5.56mm AR’s?

In my experience, similar construction (eg; clipped, cone baffle) cans on 5.56 ARs sound significantly louder when they're .30cal as opposed to .22cal.