[MHGinTN]

One perhaps oblique ancillary: I have just recently converted my ARs to piston driven guns. The reduction in heat in the firing chamber and bolt carrier, as well as the reduction in carbon fouling is very significant for more than five or six rounds fired in a fire fight. I reccommend one of three best systems because of functionality to the level of three hundred rounds in less than an hour.

[Sopater]

I have just recently converted my ARs to piston driven guns.

Details? This is new to me.

[driftdiver]

I’m in the market for a new AR15 and ran across the piston driven ARs at the store. Appreciate the comment, I need to learn more about them.

[Charles Martel]

I have just recently converted my ARs to piston driven guns. The reduction in heat in the firing chamber and bolt carrier, as well as the reduction in carbon fouling is very significant for more than five or six rounds fired in a fire fight. I reccommend one of three best systems because of functionality to the level of three hundred rounds in less than an hour.

I've been considering one of those conversions, which did you ultimately decide on?

Also, any signs of wear due to the tendency of the piston/operating rod pressure to cause the bolt carrier to deflect downwards at the rear?