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-   -   Sr-556 (http://www.firearmstalk.com/forums/f20/sr-556-a-93154/)

JimRau 06-30-2013 05:39 PM

Sr-556
 
I just picked up an SR-556 piston gun. It shoots well but I have a couple of questions for those who know more about this gun than I:
1. Is this a 'small pin' trigger?
2. Are the bbl threads the same as other (DPMS) AR's?
Thanks

Sniper03 06-30-2013 09:52 PM

Jim,

The barrel on the AR-15 is not threaded into the Receiver it will have a standard AR-15 Barrel Nut that attaches the barrel to the receiver. Providing it does not have a free float quad rail like a Yankee Hill for example which takes a special barrel nut with Lock Ring.(*Unless it would have a Troy Quad Rail which some of their Free Float Quad Rails also still use the Standard AR-15 Barrel Nut.) Your rifle does have the small pins. For example a Rock River Arms 2 Stage National Match Trigger with the .155 pins (Small Pins .154-.155) will drop right in it. The only basic difference is in the gas system, solid carrier key and specially designed carrier and items pertaining on the gas piston system. Other basic rifle components are the same as the standard AR Platform.

03

03

bluez 06-30-2013 10:57 PM

Congrats on a nice rifle!!!!

Pics or it didnt happen :D

monteros 06-30-2013 11:10 PM

Quote:

Originally Posted by bluez
Congrats on a nice rifle!!!!

Pics or it didnt happen :D

Agreed! Pics!

Quentin 07-01-2013 12:43 AM

Are you talking about the barrel threads for the muzzle device? Some things about the Ruger are proprietary, this may be one. A lot of folks are big fans of the SR-556 but I'm not, even though I have three other Rugers.

robocop10mm 07-01-2013 12:21 PM

Ah, Snipe...I am pretty sure he meant the muzzle threads.

Yes, they are the same.

JimRau 07-01-2013 12:44 PM

[QUOTE=Sniper03;1291513]Jim,

The barrel on the AR-15 is not threaded into the Receiver it will have a standard AR-15 Barrel Nut that attaches the barrel to the receiver. Providing it does not have a free float quad rail like a Yankee Hill for example which takes a special barrel nut with Lock Ring.(*Unless it would have a Troy Quad Rail which some of their Free Float Quad Rails also still use the Standard AR-15 Barrel Nut.) Your rifle does have the small pins. For example a Rock River Arms 2 Stage National Match Trigger with the .155 pins (Small Pins .154-.155) will drop right in it. The only basic difference is in the gas system, solid carrier key and specially designed carrier and items pertaining on the gas piston system. Other basic rifle components are the same as the standard AR Platform.

03
Sorry I ment the business end threads. But I have already changed the flash hider on it so I answered that question.
Thanks for your help on the other.
Jim

JimRau 07-01-2013 12:46 PM

Quote:

Originally Posted by monteros (Post 1291546)
Agreed! Pics!

Sorry gents, but unless I am selling an item I DO NOT put pictures of my weapons on the internet!!!;)

bluez 07-01-2013 02:09 PM

Just cover up the serial :)

JimRau 07-02-2013 02:58 PM

Quote:

Originally Posted by bluez (Post 1292034)
Just cover up the serial :)

Why cover up the Serial #? That is not why I don't put pics on the net.
Criminals don't give a darn about the serial #!;)


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