Sr-556
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Old 06-30-2013, 06:39 PM   #1
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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

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Old 06-30-2013, 10:52 PM   #2
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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

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Old 06-30-2013, 11:57 PM   #3
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Congrats on a nice rifle!!!!

Pics or it didnt happen

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Old 07-01-2013, 12:10 AM   #4
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Quote:
Originally Posted by bluez
Congrats on a nice rifle!!!!

Pics or it didnt happen
Agreed! Pics!
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Old 07-01-2013, 01:43 AM   #5
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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.

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Old 07-01-2013, 01:21 PM   #6
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Ah, Snipe...I am pretty sure he meant the muzzle threads.

Yes, they are the same.

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Old 07-01-2013, 01:44 PM   #7
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[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

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Old 07-01-2013, 01:46 PM   #8
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Quote:
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Agreed! Pics!
Sorry gents, but unless I am selling an item I DO NOT put pictures of my weapons on the internet!!!
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Old 07-01-2013, 03:09 PM   #9
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Just cover up the serial

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Old 07-02-2013, 03:58 PM   #10
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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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