PWS FSC556 With Sig 516

[BREWINZ]

I recently purchased a PWS FSC556 that I plan to have pinned and welded on my Sig 516. However, the end of the barrel is wider in diameter than the hole on the muzzle brake. Is this common or do I need to switch out the barrel? Does the gunsmith work some magic?

 

[Knicks]

are you saying the brake/comp wont thread onto the barrel? both should be 1/2x28

 

[mikelawtown]

Look like mine?

 

[wahsben]

Is your barrel threaded? Is there a thread protector cap on the threads that you need to unscrew?

I recently purchased a PWS FSC556 that I plan to have pinned and welded on my Sig 516. However, the end of the barrel is wider in diameter than the hole on the muzzle brake. Is this common or do I need to switch out the barrel? Does the gunsmith work some magic?

 

[Knicks]

Is your barrel threaded? Is there a thread protector cap on the threads that you need to unscrew?

good point. Could be "post ban' barrel

 

[BREWINZ]

Here is a picture. Albeit a very poor one. Bought the rifle new about 4 months ago and it's a "MA Compliant" model. No threading that I can see.

 

[Mesatchornug]

In that case, the gunsmith will have to turn down the end of the barrel, then thread it to match the muzzle device. Then they will pin and weld it in place.

 

[BREWINZ]

In that case, the gunsmith will have to turn down the end of the barrel, then thread it to match the muzzle device. Then they will pin and weld it in place.

I thought it may be something like that. Thank you.

 

[wahsben]

Double check to make sure there is no thread protector cap on it first. I've got a barrel that has a cap that you can barely tell it is on there. If no cap and threads you will have to have it done by a gunsmith or just shoot it without a brake and put your brake on the next rifle you buy.

Here is a picture. Albeit a very poor one. Bought the rifle new about 4 months ago and it's a "MA Compliant" model. No threading that I can see.


View attachment 171490

 

[rocket500]

If it's a MA compliant model there's not likely to be a thread protector. Otherwise it's not MA compliant, unless the thread protector is welded on. A threaded barrel is one of the dreaded "evil features" that makes an assault rifle an assault rifle.

 

[kontonChaos]

Generally speaking, most labeled Ma compliant guns with a pistol grip have a target crowned barrel.

 

[BREWINZ]

Generally speaking, most labeled Ma compliant guns with a pistol grip have a target crowned barrel.

That's exactly what it is. Thanks all!

 

[wahsben]

I have a gun with a threaded barrel and the caps not welded on and it's legal. It's a bolt action.

If it's a MA compliant model there's not likely to be a thread protector. Otherwise it's not MA compliant, unless the thread protector is welded on. A threaded barrel is one of the dreaded "evil features" that makes an assault rifle an assault rifle.