Which upper? Newbie to rifles

[DeltaSierra]

idk, maybe because the short and long stroke piston design has been the most reliable platform for something like 70 years...

Eugene Stoner's AR16-AR18
Mikhail Kalashnikov's Ak47

Not to mention all the current platforms from top manufactures like H&K, FNH and LWRC

army dust test stoppages chart
http://survivalcache.com/wp-content/...-60k-Shots.png

But i guess these weapons dont meet your stringent expert criteria
of being strictly direct impingement and sold through a site sponsor.

That dust test chart is a crock.

I don't really care how well a piston works in an AK, Sherlock. An AR isn't and AK, and wasn't designed to operate with a piston, so claiming something about "reliability" doesn't even make any sense.

Pistons don't improve reliability in an AR, and in fact, it increase wear and therefore increases the chances of your weapon failing due to the extra strain placed on certain key parts, such as the bolt.

[Iraqgunz]

Please do yourself a favor and stay in your lane.

1. AK's and AR180 were purpose built piston guns, not retrofits.

2. Most people will not benefit from a piston system.

3. None of those you mentioned from HK/FN or LWRC have been flawless performers.

4. There is no piston standard and thus no commonality of parts.

5. The Army dust test was not a test I would rely upon.

idk, maybe because the short and long stroke piston design has been the most reliable platform for something like 70 years...

Eugene Stoner's AR16-AR18
Mikhail Kalashnikov's Ak47

Not to mention all the current platforms from top manufactures like H&K, FNH and LWRC

army dust test stoppages chart
http://survivalcache.com/wp-content/...-60k-Shots.png

But i guess these weapons dont meet your stringent expert criteria
of being strictly direct impingement and sold through a site sponsor.

[TacticalSledgehammer]

Keep your lower and buy a LMT or BCM upper.

[crusader377]

idk, maybe because the short and long stroke piston design has been the most reliable platform for something like 70 years...

Eugene Stoner's AR16-AR18
Mikhail Kalashnikov's Ak47

Not to mention all the current platforms from top manufactures like H&K, FNH and LWRC

army dust test stoppages chart
http://survivalcache.com/wp-content/...-60k-Shots.png

But i guess these weapons dont meet your stringent expert criteria
of being strictly direct impingement and sold through a site sponsor.

I don't think it is a valid argument to infer total weapon reliability simply based on the gas system used. Many other factors go into weapon reliability such as materials used, ammunition used, overall design, quality control of mfg. etc...

Using the example of the AK as proof of gas piston superiority is sort of cherry picking your data set. Using your logic I could say that all piston systems suck if I used the British SA80 as my example.

Bottom line there have been both reliable and unreliable weapons using all of the different gas systems.

[Vash1023]

Please do yourself a favor and stay in your lane.

Wilco