Ar10 gas system; worth trying to go with a piston system or DI??

[Jpach]

If you want precision, go DI.

[ar15barrels]

what I want is that

Gas pistons are for battle rifles.
Direct impingement is more accurate.
If you just want a rifle with more recoil, the gas piston is what you need.
If you want to hit smaller targets at longer distances, then you want direct impingement or even a bolt gun.

Fal's are gas piston operated.
Get one of those.

I have not cleaned my 3 gun for about 2500 rounds.
All you have to do to keep a direct impingement AR running is add some oil before each day of shooting.
Cleaning is not as necessary as people would make you believe.

[Haplo]

I've always believed that whether a rifle is DI or Piston does not itself affect accuracy. Is there a link to some testing that says otherwise?

[C.G.]

I've always believed that whether a rifle is DI or Piston does not itself affect accuracy. Is there a link to some testing that says otherwise?

As stated above, DI is in line and Piston is not, which plays with barrel harmonics.

Here is a video by David Sams, who builds target guns:

http://www.youtube.com/watch?v=v57gQ4-VEYw

[FMJBT]

IBT"B...BOBLWTOWAPG"PGFBC

(In Before The "But...But Osama Bin Laden Was Taken Out With A Piston Gun" Piston Gun Fan Boy Crowd)

[ar15barrels]

I've always believed that whether a rifle is DI or Piston does not itself affect accuracy. Is there a link to some testing that says otherwise?

The gas piston sits up on top of the barrel.
When the gas pressure hits the piston, it slaps the carrier rearward and the barrel downward.
Piston guns string shots vertically.

I don't have some elegant link to send you to, but I have seen it with my own eyes in the precision rifle training classes I have organized when people showed up with piston guns.

[INFAMOUS762X39]

Just doing some reading on Stoner's AR-10. The original 4 prototypes all had an adjustable gas system. In the fourth and final prototype, the upper and lower receiver were hinged with the now-familiar hinge and takedown pins.

[found.a.wall]

good info from everyone!! Thanks you. And a special thanks for the Link that was posted for the difference between piston and di, good to have a visual to go along with it!!!!!