you can brush all you want, i still consider it a design flaw...
Posted on 05/15/2009 7:21:23 PM PDT by smokingfrog
Sturm, Ruger & Company, Inc. (NYSE: RGR) is pleased to introduce the new Ruger® SR-556 autoloading rifle – an innovative two-stage piston driven rifle. The SR-556 offers Ruger’s legendary rugged reliability, redefining the AR platform with piston driven performance. The piston driven SR-556 runs cleaner, cooler, and is easier to maintain than gas driven rifles, offering significantly improved reliability.
The patent pending two-stage piston driven operating system in the Ruger SR-556 provides a smooth power delivery stroke to the action and vents combustion residue out of the bottom of the gas block. The four-position adjustable gas regulator allows the operator to tune the rifle to specific ammunition and rifle conditions, minimizing recoil and maximizing reliability and long-term endurance. Reliability is further enhanced by a one-piece bolt carrier with an integral transfer key.
Designed for long-lasting accuracy, the heavy contour, 16-1/8” chrome lined barrel is cold hammer forged from Mil-Spec 41V45 Chrome-Moly-Vanadium Steel. The barrel has a 1:9 twist rate and is capped with an AC-556 flash suppressor. Chambered in 5.56mm NATO, the Ruger SR-556 also fires .223 Rem. ammunition.
A one-piece, ten-inch Troy Industries Quad Rail Handguard provides ample room for mounting sights, optics and accessories. Made exclusively for Ruger, this SR-556-specific handguard is pinned to the upper receiver and provides a rigid mount for the piston driven transfer rod.
The SR-556 is equipped with Troy Industries Folding BattleSights™. These rugged, high-quality sights co-witness with Mil-Spec optics, and are easily removed or replaced. The sights can be folded down with the push of a button, or quickly flipped up with your thumbs. The windage adjustable rear sight includes an instantly converted short and long range aperture, and the protected front sight is elevation adjustable.
The Ruger SR-556 is equipped with a six-position telescoping M4-style buttstock that houses a Mil-Spec buffer and spring. A Hogue® Monogrip® pistol grip and three Troy Industries Rail Covers provide a comfortable ergonomic hold when carrying or shooting.
Durability and performance of the SR-556 is enhanced with the use of high-performance finishes: The barrel and gas block are chrome lined, while the bolt, bolt carrier, and extractor are chrome plated. The piston driven transfer rod is electroless nickel/Teflon coated. The flash hider and the exterior of the barrel, gas block, and regulator are manganese phosphate coated. All aluminum parts are Mil-Spec hard coat anodized.
The SR-556 is supplied with three, thirty-round Magpul PMAG™ magazines. These lightweight magazines feature a storage/dust cover, a stainless steel spring, and a self-lubricating, anti-tilt follower.
The flat top upper receiver and barrel assembly is specific to the Ruger SR-556. The standard lower receiver is built with Mil-Spec components, including a single stage trigger. The lower receiver is compatible with AR-style magazines, grips, buttstocks, and fire control components.
The 7 lb., 15 oz. (without magazine) Ruger SR-556 autoloading rifle is shipped in a padded carry case that features the Ruger logo, hook-and-loop fasteners to stabilize the rifle within the case, and internal magazine pockets.
H&K 416 or a Sig 556. Yes.
Thank for the reminder.
One more thing. My RRA is also tricked out and I wouldn’t trade it for anything.
There are others, LMT for example, they have just uppers that are gas piston operated. Plus Adam's Arms offers a kit to upgrade a regular AR to long stroke piston operation. Bushmaster has gas piston uppers.
Ah crap. forget about the pin BS. I forgot about that.
Isn’t it only certain years of the colt ARs that use smaller pins?
Let me rephrase that previous post.
If you set it side by side with a bushmaster, can you swap uppers?
There...is that better?
American Spirit specializes in entry-level ARs. If you're inclined to go that route - and there are good reasons for doing so - I'd recommend Del-Ton instead. They're very affordable, but they don't scrimp on quality or customer service - and have no shortage of satisfied customers over on AR-15.com.
So, basically, they’re going to make an AR that can’t hit the broad side of a barn, the “special” Ruger branded magazines will cost eight times what magazines for comparable models do, and the next time there’s a gun ban they’ll sell out to keep their precious rifles on sale?
You can’t set some Colts next to some Colts and swap uppers, thanks to their stupid proprietary pin idiocy that they came up with.
So, I guess Colts are junk too.
With the wrong barrel twist, a bunch of aftermarket accessories (they couldn’t be bothered to make their own mags or Picatinny rails or anything else, they just bought them on the open market) and a stupidly high price for a piston carbine? Yeah, NO, they didn’t.
No, they didn’t. They screwed up the barrel, again.
The optimum for most 5.56 loads is 1 in *8*, not 1 in 9.
You can run a piston system in any AR these days, I'm looking at retrofitting a 7.62X39 AR with a piston system to reduce the fouling.
If not, it’s junk.
What size pins does your Colt have? I'll size my Armalite to compare.
According to one of the articles, the accuracy is impressive. It also uses standard magazines.
Are you going to blame an American Company for what their dead in the grave founder did thirty years ago?
you can brush all you want, i still consider it a design flaw...
Just where do you suppose the powder residue deposits are in an AK-47, M-1 Garand or M-14?
on the SKS and the AK, 90% is at the front, on top of the piston head... on the ones i own anyway they both look like the top of a car piston that was running a bad mix. you clean that off and poke a cleaning rod through the port hole into the barrel and it's clean. the M1/M14 is still at the front of the gas system not dumping all that crap DIRECTLY onto the bolt...
a semi proof it is a design flaw, is the fact that on the AR-18 he got rid of the gas tube.
I dont like the mini 14 because of the ammo. 5.56 ammo isnt really the same as .223. Higher pressure in one.
Why didnt Ruger make it the same caliber as the AR15 type???
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