AR57 Suppressed, Stiffer buffer spring or leave as is?

[Kiran04]

Thoughts?

[DoubleJ]

What barrel? I've got the EA modified EFK barrel with their spring, pistol cycles the same with or without an Axiom on the end of it, which is to say fairly reliable, but certainly no worse with the can on it.

[Kiran04]

What barrel? I've got the EA modified EFK barrel with their spring, pistol cycles the same with or without an Axiom on the end of it, which is to say fairly reliable, but certainly no worse with the can on it.

16"

[DoubleJ]

Derp! I'm dumb, I keep forgetting there are other platforms than the FsN for the 5.7. Don't have an answer for you, since the AR57 ejects down, can't use your ejection pattern to determine if you're overgassed (over blowbacked?) or not once you screw the can on. I'd say if it continues to function reliably, you're probably OK to leave the stock parts in. Actually, now that I think about it, since it's not a DI system and operates more like a 22, I think you should be fine. ARs need more spring or buffer with a can because dwell time is increased slightly due to the can. I've never heard of anyone adding more spring to any other type of system when adding a can, as you're really just effectively simulating a slightly longer barrel, which would have no effect on bolt or slide speed unless we're talking about really short barrels on rimfire stuff.