Looking for info on where to get 5in muzzle attachments to make a barrel 16 inchs

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[ARCHIVED THREAD] - Looking for info on where to get 5in muzzle attachments to make a barrel 16 inchs

Posted: 1/21/2015 11:12:46 AM EDT

Looking for info on where to buy 5inch muzzle attachments especially CHEAP priced ones I believe there called moderators to make a barrel 16 inchs like the old colts.
Thx for any help

Posted: 1/21/2015 12:23:36 PM EDT

[#1]

https://www.gunpartscorp.com/ad/555660.htm

Posted: 1/21/2015 12:58:16 PM EDT

[#2]

I bought mine off of Amazon. They have a bunch of different ones and cheap prices.

Posted: 1/26/2015 4:16:15 PM EDT

[#3]

Tonyscustomsllc.com

Posted: 1/26/2015 5:59:48 PM EDT

[#4]

Model 1 even has a couple of different ones. One slotted and one just full of holes.

Posted: 1/26/2015 9:56:27 PM EDT

[#5]

Am looking at this for my 10.5 inch barrel.... http://www.usmachinegun.com/proddetail.php?prod=AR10-PRT55 , or this... http://www.usmachinegun.com/proddetail.php?prod=AR10-A155 . Just wish i didn't have to pin it but oh well.

Posted: 1/26/2015 10:17:59 PM EDT

[#6]

Quote History

Quoted:
Am looking at this for my 10.5 inch barrel.... http://www.usmachinegun.com/proddetail.php?prod=AR10-PRT55 , or this... http://www.usmachinegun.com/proddetail.php?prod=AR10-A155 . Just wish i didn't have to pin it but oh well.

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That's only going to bring you to 15". I believe most AR barrels are threaded roughly .5" so a 10.5" barrel (10") + 5.5" (5")muzzle device would equal 15" since both have .5" threaded areas to mate that don't contribute to overall length.

Posted: 1/27/2015 9:04:24 AM EDT

[#7]

I shot them an email last night. Had a reply this morning. They made a good point of not going longer as the risk of a baffle strike increases. Guess I am screwed and will leave mine alone as is and hope SIG wins there argument. Until then, one arm shooting in public.

Posted: 1/28/2015 11:12:00 PM EDT

[#8]

Quote History

Quoted:

That's only going to bring you to 15". I believe most AR barrels are threaded roughly .5" so a 10.5" barrel (10") + 5.5" (5")muzzle device would equal 15" since both have .5" threaded areas to mate that don't contribute to overall length.

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While you couldn't count both threaded areas (since they overlap) I don't see why you are not counting either one.

You measure from the end of the barrel (the crown), which includes the threaded section, but normally do not count any muzzle device. If the muzzle device is permanently attached, it is counted for length.

So a 10.5" barrel + 5.5" muzzle device = 16" - .5" overlap of threaded areas = 15.5" length.

Posted: 1/29/2015 11:07:47 AM EDT

[#9]

I'm really not trying to be a smart ass with this question (seriously).

But...why do this?

Shorter barrels give up velocity in favor of form factor, they're lighter, smaller, and easier to swing around.

Taking a 10.5" barrel and adding a tube to it to get to 16" is like having the worst parts of both worlds. It is no longer lighter (just get a 16" ultralight barrel) and it is no longer smaller...but you still lose velocity due to the actual barrel only being 10.5".

I've always felt the same way about a pined 14" barrel with a welded in comp/flash hider. That's a ton of effort for a 2" reduction and you'd better hope you love that comp...because you're stuck with it.

Posted: 1/29/2015 4:17:56 PM EDT

[#10]

Quote History

Quoted:

While you couldn't count both threaded areas (since they overlap) I don't see why you are not counting either one.

You measure from the end of the barrel (the crown), which includes the threaded section, but normally do not count any muzzle device. If the muzzle device is permanently attached, it is counted for length.

So a 10.5" barrel + 5.5" muzzle device = 16" - .5" overlap of threaded areas = 15.5" length.

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Quote History

Quoted:

Quoted:

That's only going to bring you to 15". I believe most AR barrels are threaded roughly .5" so a 10.5" barrel (10") + 5.5" (5")muzzle device would equal 15" since both have .5" threaded areas to mate that don't contribute to overall length.

While you couldn't count both threaded areas (since they overlap) I don't see why you are not counting either one.

You measure from the end of the barrel (the crown), which includes the threaded section, but normally do not count any muzzle device. If the muzzle device is permanently attached, it is counted for length.

So a 10.5" barrel + 5.5" muzzle device = 16" - .5" overlap of threaded areas = 15.5" length.

Yeah I realized after the fact that the total should have been 15.5". Thanks for the correction.

Posted: 1/29/2015 5:06:47 PM EDT

[#11]

I don't understand the logic in doing this. If you are going to make the barrel 16 inches to comply with the law, why not just use a 16 inch barrel?

Posted: 1/29/2015 11:03:17 PM EDT

[#12]

I think generally it is for weight and handling.

5" of barrel is heavier than 5" of muzzle device due to there being more metal. Since the weight is also at the end of the barrel, it contributes to the weapon being "nose heavy."

Posted: 1/31/2015 11:20:53 AM EDT

[#13]

Five inches of a larger diameter muzzle device with the same wall thickness will be heavier than the smaller diameter of the barrel, resulting in a muzzle heavy balance. Adding all the weight to a pistol barrel is exactly that, adding a bunch of weight.

Why remains the question. It's not worth the money, time, and labor to do that modification unless the point is to simulate the look of the XM177. That moderator - classed as a suppressor - was needed because we were using a high flash powder in them. Today the preferred choice is the MK 262 round which uses low flash powder.

For all the workaround, a suppressor would be the better choice - which is exactly what the Navy uses on the MK18 10.5" barrels.

Posted: 1/31/2015 11:30:18 AM EDT

[#14]

I think he is trying to increase the length of a barrel he already owns to make a pistol into a carbine.

Posted: 1/31/2015 1:44:35 PM EDT

[#15]

How about the answer to your why question is this: Because 'Merica.

Posted: 1/31/2015 11:34:45 PM EDT

[#16]

Quote History

Quoted:
Five inches of a larger diameter muzzle device with the same wall thickness will be heavier than the smaller diameter of the barre

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Muzzle devices aren't necessarily the same thickness as the barrel. For that matter, different barrels with different profiles will have different thicknesses. And the muzzle device will have openings the reduce weight, where as a longer barrel will not.

Posted: 2/1/2015 9:27:11 PM EDT

[#17]

I checked with KAK industies, where i got my 10.5 inch 308 upper from, to see if they would make a 6 inch flash can. Was told no, but they are receiving allot of request for it. Shouldn't have to worry about muzzle strike using a flash can. Light weight too.

Posted: 2/12/2015 2:18:00 PM EDT

[#18]

Quote History

Quoted:

I've always felt the same way about a pined 14" barrel with a welded in comp/flash hider. That's a ton of effort for a 2" reduction and you'd better hope you love that comp...because you're stuck with it.

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But... but... you can mount a bayonet on it!

Posted: 2/14/2015 11:16:21 AM EDT

[#19]

I wonder if you permanently installed a bayonet if the ATF would count it toward OAL? :P

Posted: 2/14/2015 11:49:47 AM EDT

[#20]

Quoted:
Looking for info on where to buy 5inch muzzle attachments especially CHEAP priced ones I believe there called moderators to make a barrel 16 inchs like the old colts.
Thx for any help

View Quote

I know its not cheap but its 6"

http://aresarmor.com/store/Item/Muzzle_Ares_Breath

[ARCHIVED THREAD] - Looking for info on where to get 5in muzzle attachments to make a barrel 16 inchs

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