Originally Posted by mixflip
Its no secret that I love gas piston AR's. I have a few lengthy threads here at GT stating the fact. I to have been shooting d.i.'s for over 2 decades (since 1989 when I first joined the service.) I love d.i's but I love not cleaning the star chamber more. I'd gladly clean the piston and piston tube vs the star chamber in the receiver. That right there is enough justification for me. It may not be a good enough reason for anybody else but guess what ....I dont care lol.
Gun snobbery is rampant on the internet. I think shooters should just buy what makes them happy and what fits their needs and what works for them.
The haters will tell you that gas piston AR's are too heavy, they have more parts to fail,they experience carrier tilt, arent accurate, parts are hard to find, the design is not standardized, they are not true mil-spec, that its a solution looking for a problem that doesnt exist and so on and so forth.
Some of which is true and many of which is NOT true...and all of which I dont care. I am not saying gas pistons are an improvement or that they are better...all I can say is that I no longer have to use a dental pick or special shaped brush to clean that dang star chamber and I dont have to "run the bolt wet" and thats worth every penny to me.
On a side note - While I was at the media day shoot in Boulder City last month Surefire had 2 d.i. rifles for us to shoot to test out their 60 & 100 round magazines. These d.i. rifles were getting the snot shot out of them! They held up a few thousand round and a few hours of consistent shooting until they finally needed to stop and lube the bolt due to malfunctions. I even got video of the guns going down due to the fouling. I didnt plan seeing it, I was just there when it happened. The d.i's held up for hours just fine until they malfunctioned which is good enough for me for home defense or SHTF I would think since I dont think I will be putting 2000 rounds down range in a real world situation? But they did have dirty bolt issues..thats a fact.
Meanwhile at the HK booth, they had their MR556A1 out for us to shoot all day.(civilian version of the HK416 gas piston gun) I asked when they cleaned it last and he said it has not been cleaned or oiled all day and no one had any malfunctions. Was he telling the truth? Who knows?
All I can tell you is what I personally know and personally experienced. Take it for what thats worth?
That in the red is true though, heres some food for thought, on running a piston AR dry, excellerated wear, yes when the steel bolt carrier runs back and forth under pressure, it wears the aluminum upper. Sure the factories dont worry about as they can just toss it and replace it, but who wants to destroy a rifle by not lubing it? Its not allot different thant aluminum pistons in a cast iron block, sure there is not as much heat, but you still need it lubed or do you run your engine without oil? The biggest reason a AK is so damn reliable is, it is built to far looser tollarances than the AR, and this is done for a number of reasons, 1. conscripts in Soviet service were less than well educated in firearms, kerosene or diesel was the solvent, with motor oil the lubricant. 2. ease of manufacturer by those who are not well educated, and are more or less required to work there. 3. Soviet machinery of the era, was not as well made or have the abilty that their western counterparts had or possesed.