AR Piston

[Carnage]

I like to have a piston AR but for a low profile gas system.
At first I wanted to use AA, but It won't work for low profile
Which one do you recommend?

[Constructor]

Out of all of the systems I have tried AA is the only one I would recommend, most are copies of the Armalite AR180 piston but the little details make the difference.

[Carnage]

Out of all of the systems I have tried AA is the only one I would recommend, most are copies of the Armalite AR180 piston but the little details make the difference.
How about Osprey?, they seem to work for low profile

[Constructor]

Rumor says Osprey is going out of business but that's just a rumor at this point.