AR 10 gas piston system

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14 years 3 months ago #5403 by rnb873091
AR 10 gas piston system was created by rnb873091
I was on line with MSH several months ago about a AR10 gas piston system has anyone here if is available yet?

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14 years 3 months ago #5404 by mrraley
Replied by mrraley on topic Re:AR 10 gas piston system
July 3, 2010 Rev 1
TECHNICAL NOTE 54: DIRECT IMPINGEMENT VERSUS PISTON DRIVE

PURPOSE: To compare the merits of internal and external piston drive systems.

FACTS: The AR-15/M16 and the AR-10 family of rifles employ a unique gas powered operating system patented by Eugene Stoner in the 1950s. This gas operating system works by passing high pressure propellant gasses tapped from the barrel down a tube and
into the carrier group within the upper receiver, and is commonly but incorrectly referred to as a

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14 years 3 months ago #5405 by rcking
Replied by rcking on topic Re:AR 10 gas piston system
I am sorry Mr.Mrraley but rnb873091 was asking if Mark's piston system was ready and he wasn't debating the piston versus gas issue.

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12 years 6 months ago #11608 by rcking
Replied by rcking on topic Re: AR 10 gas piston system
Marks piston system is ready, he is waiting on the patent to go through. I will say this "you will not be dissapointed".

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12 years 6 months ago #11633 by LebbenB
Replied by LebbenB on topic Re: AR 10 gas piston system
Will it use an adjustable valve or a self-regulating piston cup?

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12 years 5 months ago #11798 by sansone
Replied by sansone on topic Re: AR 10 gas piston system
don't take this the wrong way, can somebody remind me why we install the pistons?

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12 years 5 months ago #11808 by LebbenB
Replied by LebbenB on topic Re: AR 10 gas piston system
Piston ARs shine when shooting FA or supressed. Especially supressed - the amount of blowback the shooter receives is substantially less with a piston AR vice DI. Less blowback down the bore means less carbon and heat in the receiver, which enhances reliability.

Piston proponents like to talk about increased reliability across the spectrum, and that's true with a caveat. IF the manufacturer has done it's due diligence and addressed carrier tilt, timing, and bolt bounce issues then a piston AR will tend to be more reliable due to where the excess gas vents as opposed to where it vents in a DI AR. Less heat and gas in the receiver means less lube burn-off. I will say this, though: If the potential AR owner's intent is to have a GP rifle for recreational use as well as SD/HD and will never drive that rifle to it's limits, his money would be better spent on a good DI AR (built to the TDP) versus a piston AR.

TANSTAAFL: The trade off for this increased reliability is weight. A piston system adds up to a pound or so to the weight of the AR and is concentrated near the muzzle, making a piston AR somewhat nose-heavy.

While I'm not a big fan of drop-in kits, I own a few piston ARs from LWRCi and POF and they've been marvelously reliable and accurate over the last several years, both supressed and unsupressed. So much so that I recently added an LWRCi REPR to the collection.

Even if you aren't a piston AR fan, you have to laud companies like LWRCi and POF for their pioneering use of modern materials and metal treatments to enhance the reliability of all ARs. Seven years ago the use of CHF barrels, nitro-carburization and nickle-boron surface treatments were unheard of in the AR world. Now they're fairly common-place on many top-tier ARs.

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12 years 5 months ago #11810 by sansone
Replied by sansone on topic Re: AR 10 gas piston system
thanks lebbenB for the detailed description, I'm not pro or con personally but like to read informative posts like yours ;)

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