Yeah yeah i know if you dont want a gun that is “self fouling” youre a moron.
The idea that a piston gun is cleaner is not based in reality.
The ONLY thing that a piston gun does is to change WHERE the gas and accompanying junk goes…
On a piston gun, instead of the gas blowing back into the upper receiver as the rifle was designed, the gas (and the crud in the gas) is blown up into an enclosed chamber right above the gas port.
The piston just adds extra complication without solving anything.
This has been covered extensively in other threads, and I don’t want to derail this thread, but you really need to read more and post less…
Someone who resorts to name calling in a debate does not help his argument. I completely disagree. Yes both guns use expelled gas to actuate the bolt only one expends the gas into the action. This flaw has been remedied by adding lubricant to the bcg. Both systems work, DI needs to be wet, gas piston has more moving components.
Notice how I made a point and didnt belittle you by calling you a name like we are in 5th grade?
Why? What will the Piston give you that a DI is not? What is the DI FAILING at (in other words)?
C4
Just as an FYI, you HAVE to lube piston guns. You should read the LWRC manual some time. There are so many lube points that I couldn’t keep up with them all.
C4
I never said it was failing. I said I wish they made a piston upper, that is what I prefer.
Its said that if someone doesnt follow the crowd they automatically are berated.
Its not like I said “AR15S SUCK AND STONER WAS A HOMO”
I am not a piston fanboy. I just prefer the design. I wish all the DI apologists would leave me alone. Damnit.
How much experience do you have with a DI AR and why do you prefer a Piston AR??? What does it give you that a DI gun does not?
Most people want a piston gun because either they don’t have a lot of experience with a DI gun or some how believe that a DI AR is not reliable.
C4
My reasons are my own. Why do you care?
Honestly, if you want to know why I prefer a piston gun over DI its because as a mechanically minded person, and an aspiring mechanical engineer I see DI as a flawed design. It has been refined to be much more reliable than its prototypes. There is no doubt that DI is proven, it works. There is also no doubt that piston guns work, who claims that the AK is unreliable? The FACT is that DI requires more maintenance than a piston gun. Both require cleaning, one will require it before the other will. Both get dirty, but only one gets dirty in a very important place. There are disadvantages to piston guns. It has not been standardized. There is no milspec piston system, parts are proprietary. There are more moving parts, moving parts wear. At the moment there arnt many companies making piston guns so spare/replacement parts are not compatible as no standardization has occurred yet. I personally believe piston guns are the next evolution of the AR, its really the final refinement. Some purists will never agree with that, fine. I dont care.
If you like DI then use DI, once again its proven, it works. But everyone needs to chill out on piston guns. Why does something thats alittle different make so many people so defensive?
I do understand that I am on a website called “m4carbine.net”. Im not here to change peoples minds. I prefer what i prefer, why does that threaten so many people?
My guess is that people want to know if you have hard data that supports your preference. It doesn’t sound like you do.
Do you have hard data to prove why you drive a certain car? Or maybe why you married a certain woman?
Why do you need hard data to make a logical decision?
I stated several reasons why I like what I like. I dont have to justify it to anyone.
Sorry if I came off curt in my last comment. No one is trying to get combative with you. Shoot whatever you want and do it often.
As for why you’d want hard data to make logical decisions, the quick Wikipedia chain of concepts is:
http://en.wikipedia.org/wiki/Logic
http://en.wikipedia.org/wiki/Inference
http://en.wikipedia.org/wiki/Statistical_inference
M4C is serious about hard data when it comes to claims about weapons. That’s what separates it from other sites.
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Let me say this without name-calling or being ugly, so you don’t get offended or your feelings hurt.
If you do not have “data” it is not a “logical decision”, it is an opinion. You need to “aspire” a little harder to excel as an ME…
You listed every good reason why not to buy a piston gun…yet… you prefer a piston gun?? Sounds like some pretty strong logic to me.
Just curious, was your “logical decision” made from reading Shooting Times and Guns & Ammo reviews and advertisements since you couldn’t (wouldn’t) answer Grants question’s?
So, by all means go buy your piston gun but don’t come here and try to proclaim a piston-gun’s imaginary proven reliability, so someone may take your kaa-kaa opinions as fact, buy one, possibly use it in a life and death situation and come up on the short-end…
How can you, in the same Thread, brag on how great your BCM DI gun is and then defend an AR piston-gimmick as the next AR evolution? I’m confused.
Now, I didn’t call you a blowhard, armchair commando, TOS-dweeb or nothing like that, so your feelings shouldn’t be hurt?
So, I typed all of this to just say …“You know not of which you speak, so shush! Read more spew less!”… 
But maybe it’s just me…
PS - Just did a quick Post count-You have had over 25 posts in 36 hours…maybe I should have just called you a “Troll” and been done with it.
But…again…maybe it’s just me…
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My feelings are not hurt. I didnt come here stating any claims about piston guns being better than DI. I have some personal beliefs. I dont care to sway any others opinions. Forgive me if I dont want what everyone else here wants. I had a BCM i thought is was great. What i didnt think was great was the design of shitting where you eat. It doesnt make sense to me.
All I have heard is “hard data” but I have yet to see a document or piece or research that proves DI to be more reliable that a piston weapon. I have been told to back up claims or piston superiority with “hard data”, claims that I never made. I personally have not seen any such data. What I have seen is a group of people who are stuck in their ways and has made up their mind about something. They are not open to anything new. No new ideas. However they post links to Wikipedia pages on logic, and inference. I guess being a smartass is easier than assessing another post objectively. I have not once tried to change someones opinion. I dont care what you think.
I have a brain and am capable of thinking for myself. I wanted to try a piston gun, did, and liked it better. I shot it in the rain side by side with my bcm. The piston gun, and LWRC ran with significantly less lube, and did not have a malfunction of any kind after hundreds or rounds, high quality brass ammo and even cheap Russian steel cased ammo. The bcm also had no malfunctions, although I did have 10x more carbon and junk in the receiver. If i would have continued this comparison the bcm would have inevitably needed more lubrication or cleaning. I was impressed.
I am sorry you all are so insecure about DI guns that you have to seek out arguments out of none antagonistic posts.
You all enjoy your rifles, i will enjoy mine. Enjoy your dogmatic regime that is m4carbine.net. I will go away.
I have posted that frequently so I could reach the quota that is required to post in the exchange. I joined this site primarily to sell gear.
So if I say something like “BCM is a great company and make great products, but I would like it if they made a piston upper.” I am obviously a troll.
*facepalm
I am sorry this occurred on a sticky thread, ironically that was posted to inform and educate people.
So I actually have a LWRC M6A2 and it rocks all day, I dont know who said they have too many oiling point. Thats just false. I put a light coat of slip 2000 EWL on the bolt and bolt carrier and I am done with it. Lasts as long as I need it to.
Also I prefer piston because it is more robust and to put it in short you're not crapping where you eat. Yes the front gets dirty but you're not dumping all that carbon into vital working areas, that is the main attraction of a piston design.
Also not to be mean or anything, but all, let me repeat that ALL military guns are either blow back or piston operated. The M4 is the only design to use DI. I wonder why that is? Reliability, durability perhaps? Just wanted to clarify a few points for those out there.