Yes, accuracy suffers. You go to about 1.5 to 2 MOA with the piston. Meaningless change in battle where “minute of body” is more important, and having a much more reliable rifle is the goal. Reliable, consistent, and accurate enough is what our soldiers want (from talking to those currently deployed overseas); being able to shoot sub-MOA groups is irrelevant in a battlefield situation.
That’s not too bad. What system is that with? I know there are many different. Still I don’t think I’ll be looking to buy one anytime soon. I like the SCAR but at $3K, I can buy a very nice AR, a very nice AK and a bunch of ammo for both. Even the Ruger lists for $2K. I would advise anybody looking for a good rifle to get a nice AR and buy a lot of ammo to practice with instead of spending the extra money on a piston gun that won’t be any more reliable to a civilian.