Great West Gunsmithing GunDoc can fix up your Mini-14 like no other...

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Old 09-07-2009, 15:31   #1
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Flash hider to muzzle brake

Hello Doc -

Wondering if you can inform me on what can be done here. Due to lay offs and financial issues, I'm having to end up moving to a state which does not like the "flash hider". I do not want to get rid of my toys specially the 580 LE series Mini 14 so I would like to alter it per their laws which only involves the flash hider & adding a 10 rd. mag.. Is it possible to swap this out for a muzzle brake? If so, how to and who sells the replacement?

Thank you,
Don
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Flash hider to muzzle break-dsc01558.jpg  

Last edited by ThirtyCal; 02-13-2010 at 11:31.
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Old 09-07-2009, 17:53   #2
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Look for something threaded 9/16 x 24 RH, such as this:



http://www.brownells.com/.aspx/sid=3...2_TPI_9_16__24

I don't know what's legal for you, so that's just an example above.

Maybe gundoc will have some more helpful advice for you.
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Old 09-08-2009, 00:59   #3
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Drifter - this looks promising. As long as it's not a flash hider it's legal.
Just gotta figure out how easy or hard it is to remove the factory bird cage. Thanks.
Do you still have the Pro Mag 10 rd mag for sale?
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Old 09-08-2009, 05:23   #4
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Put some electrical tape on a pipe wrench to remove the factory FH. Or insert a screwdriver in the slots if you're not worried about messing it up.

(And yes, I still have some mags for sale in the classifieds.)
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Old 09-08-2009, 07:28   #5
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Muzzle Brake

First off, please note that the term is "Muzzle BRAKE," as in, slow the recoil via a device on the muzzle. The term originated with artillery, when the braking effect was needed to reduce the load on the recuperator, thus allowing a lighter recoil system and gun carriage.

Next, be sure that your state doesn't have the phrase "flash suppressor or threaded muzzle capable of accepting same," as did the 1994 Crime Bill language. M14-type rifles can make the swap from flash suppressor to muzzle brake (or "compensator") because the flash suppressor isn't threaded on, instead the suppressor "slips" on.

So don't get caught by the "threaded muzzle" version of the flash suppressor ban. Too bad the Mini doesn't seem to use the AR-15/M16-standard threads. Come to think of it, the SR-556 has a "Ruger flash suppressor." I wonder what the threads are on that muzzle...

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Last edited by wjkuleck; 09-08-2009 at 14:15. Reason: Misspelling
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Old 09-09-2009, 19:08   #6
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Originally Posted by wjkuleck View Post

Too bad the Mini doesn't seem to use the AR-15/M16-standard threads. Come to think of it, the SR-556 has a "Ruger flash suppressor." I wonder what the threads are on that muzzle...
I think the SR-556 has standard AR threads ("x28).
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Old 09-28-2009, 01:03   #7
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The SR-556 and the newer 580 series GB's all take the odd-ball ruger thread pitch. I recently bought the above pictured muzle break from brownells and fitted it to a friends new GB that he recently bought here in CA. Works great as long as you tighten it down well.

If you are moving to CA, your rifle is perfectly legal as long as it comes over the state line with the flash suppressor removed.
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Old 10-01-2009, 23:48   #8
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so it is the 9/16x24? How's it look? do you have a photo of it?


Originally Posted by gunrun45 View Post
The SR-556 and the newer 580 series GB's all take the odd-ball ruger thread pitch. I recently bought the above pictured muzle break from brownells and fitted it to a friends new GB that he recently bought here in CA. Works great as long as you tighten it down well.

If you are moving to CA, your rifle is perfectly legal as long as it comes over the state line with the flash suppressor removed.
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Old 11-16-2009, 22:20   #9
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break

I live here in the PRK and have 2 mini's one I registered the other I removed the flash hider/suppressor and added a break. When I asked the firearms "experts" at DOJ they told me that there is no definitive way to tell the two apart without shooting them side by side in a dark room. The other way to be somewhat legal is to make sure that the bottom of the break is solid (no cuts) and to make sure you carry the bag it came in with the label stating muzzle break. Welcome to the state of crazy, stupid, unenforceable laws.
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Old 11-17-2009, 04:01   #10
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It's "muzzle BRAKE," not "break"

Originally Posted by rdubya View Post
I live here in the PRK and have 2 mini's one I registered the other I removed the flash hider/suppressor and added a break. When I asked the firearms "experts" at DOJ they told me that there is no definitive way to tell the two apart without shooting them side by side in a dark room. The other way to be somewhat legal is to make sure that the bottom of the break is solid (no cuts) and to make sure you carry the bag it came in with the label stating muzzle break. Welcome to the state of crazy, stupid, unenforceable laws.
It's "muzzle BRAKE," not "break"; the device was first invented to slow the recoil of artillery tubes (barrels) to reduce the load on the piece's recuperator (recoil mechanism), permitting a lighter chassis. The muzzle brake slows the recoil by redirecting some of the escaping propellant gas.

When we (Fulton Armory) tried to get the BATF to approve a muzzle device as a muzzle brake rather than flash suppressor, they refused on the grounds that it reduced flash. However, they wouldn't give us a clue as to their testing protocol, so we had no way to figure out how to comply.

Thus, we went a different way, with a faux suppressor that was (and still is) very convincing without any slots at all. One gunwriter complained that our "compensator" was too good, that it actually forced the muzzle down when firing! Amazing what the power of suggestion can do.

Regards,

Walt
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Old 02-15-2010, 20:34   #11
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Ok i'm a little confused..... I have a mini 14 tactical in new york and we are wicked anti flash hider. My birdcage on my tactical looks identical to the flash hider you have on your SS. So do you really have to remove it? I figure if i can get my birdcage from a gun dealer it should be legal for you to keep it on there.

Is cali that rediculous?
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Old 02-15-2010, 21:09   #12
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Originally Posted by N1ghtk1d View Post
Ok i'm a little confused..... I have a mini 14 tactical in new york and we are wicked anti flash hider. My birdcage on my tactical looks identical to the flash hider you have on your SS. So do you really have to remove it? I figure if i can get my birdcage from a gun dealer it should be legal for you to keep it on there.

Is cali that rediculous?
I don't know about NY but as far as I know they're not legal in CA.
And yes, Cali is that rediculous!

Here's an update Out with flash hider in with muzzle brake
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Old 02-16-2010, 05:33   #13
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What you'll find is that the factory part is 9/16x24TPI, but it's an unusually long thread tenon with an unthreaded portion at the muzzle. The part is on really tight and has a star crush washer between the crown and the base of the part. The Shrewd part referrenced in the photo above may not fit properly without shortening the barrel a little to keep the threads from being exposed at the rear.

The BATFE has no definable protocol for what constitutes a flash hider vs. a brake, and I assume neither would the State. They'll likely use criteria such a slots vs. holes, but you need to check first. Call the local ATF office, the State Police, and anyone else that would be responsible for your arrest and prosecution to determine what will be legal to own. It's crazy times we live in, so always ask for a written letter or email that you can print for reference.
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Old 06-13-2011, 22:52   #14
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Torx #60 in the end of the flash hider is perfect for removal. Saw it in the 10/22 tactical advertisment and then tried it. like butter. save a flash hider, or use a torx and then sell it to me.
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Old 06-24-2011, 11:47   #15
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Originally Posted by N1ghtk1d View Post
Ok i'm a little confused..... I have a mini 14 tactical in new york and we are wicked anti flash hider. My birdcage on my tactical looks identical to the flash hider you have on your SS. So do you really have to remove it? I figure if i can get my birdcage from a gun dealer it should be legal for you to keep it on there.

Is cali that rediculous?
Cali is so ridiculous...
it's redonkulous

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Old 06-26-2011, 22:47   #16
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I wonder if Ruger changed the nomenclature for the part to baffle the anti gunners.
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Old 07-12-2011, 03:55   #17
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There is a muzzle brake designed specifically for the Mini's that passes the CA test...Mo-Reaper

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Old 10-08-2011, 13:36   #18
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Hello KMO,
Can you tell me how much the Mo-Reaper adds in length to the barrel after it's installed. I like the idea but have a new 580 with an 18.5 barrel. I can't get any dimensions on the brake. Also I read that the brake fits the original front sights pin slot. I have also read that the brake slids axially on the barrel. That indicates that it was installed without using the roll pin. Ofcoarse that could have been user error, but I was hoping for clarification from the source. It really looks fine. I just want to assure a positive outcome.
Thank you,
John
Livermore,Ca.
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