Looking to purchase a silencer for my 5.56 mvp flex

Discussion in 'Class 3 / NFA' started by Duaneh, Mar 24, 2016.

  1. Duaneh New Member

    Member Since:
    Nov 28, 2015
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    As stated, I seek additional information on this subject. I am leaning to buy a 30 caliber size so I can use on my g/f .243 Weatherby vangaurd, also my .270 American rifle and even my browning bar 30-06 it has a `boss` system on it and is threaded but not sure what size.
    To allow some variance to the purchase.
    My main question is: is there any adverse effects to using a 30 call size for the 5.56 or 243? My flex is already threaded 1/2-28. Her 243 is not.
    The main two to supress is my 5.56 flex and her 243, but if I buy one for my flex it will be to small for her 243.
    Any thoughts or advice to help me pick one out. Brand, size?

    I am a machinist and plan to build one but kinda think I need to buy one first to get me started. In process of creating a trust for my NFA items.

    Thank you.
    Duane

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  2. jwb47 Active Member

    Member Since:
    May 4, 2014
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    well you will need a 30 caliber suppressor . I can only tell what I know about mine . it is a yhm phantom stainless steel with q.d. mount . you can get mounts with different thread pitch so you can use them with different guns . I have 5/8 x 24 for my 308 and 300 blackout , 1/2 x28 for 5.56 , and 14/1L for my 7.62 x 39 . my particular can is heavy but rated for 300 win mag and 5.56 and 308 full auto , I have run mine on an m16 full auto with no ill effects . I would check with different manufactures to see just what the suppressor is rated for my advise would be the less weight the better.

    since your interested in suppressing your 5.56 mvp flex here is a pic of my mvp thunder ranch with my yhm 308 phantom suppressor mounted .



    [IMG]
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  3. Duaneh New Member

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    Nov 28, 2015
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    Thank you very much. I was actually looking at the yhm 30 cal can and the larue. That verified my b thought that I a few extra flash ends and are the qd attachments for the can..your rifles looks real nice with it on there. So the 223 round going through a 30 cal can does fine. That's what I was wondering
    My flex. uploadfromtaptalk1458870038619.jpg
    And changed scope
    uploadfromtaptalk1458869982505.jpg

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  4. spamassassin Well-Known Member

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    yes, it does just fine. You will get less efficient suppression of sound and less recoil reduction with calibres under .30 but it'll still be effective, just a bit less so. I don't know if it'll be efficient enough with the .243 to be hearing safe for say, hunting but it's definitely going to be better than no suppressor. Make sure you get one rated for .30-06 or bigger since you'll be putting a .270 case in the mix.

    Also note that putting it on your BAR may require a gas port setting change. Pressure will be up longer and that may cause premature extraction, ripping off of case heads or FTE's. That's just a general caution about gas operated semi's with suppressors. A suppressor tends to increase the cycle rate.

    If you make one yourself, then I'd suggest a visit to silencertalk.com. Plenty of experience there. Do you know what sort of baffle stack you're going to go for?

    In any event, I'd recommend that for a can you're going to use on a meat gun that you buy it retail. Pistols are easy as hell to make a suppressor for and .22 rifles and .223's and such but when you step up to .30-06 sorts of case capacities you need some extra engineering including hardening of the first baffle and other little tricks.
  5. Duaneh New Member

    Member Since:
    Nov 28, 2015
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    Thank you. My making one was more in line for my 223 and eve 22 now that you mentioned it. If I buy a 30 cal can I'd use it for the bigger calibers. I didn't know of the semi gas change, and glad you mentioned it cuz a BAR is sure different compared to an AR style weapon.
    What I have learned, I plan to make k baffles with a cnc lathe. Just curious what is used for the outside tube to start with.?

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  6. spamassassin Well-Known Member

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    Steel can but I honestly have zero clue as to which specific steel would be best. It sure won't be 4XXX but might be 3XX or 416SS. I do know that normal 2" welded seam exhaust tubing filled with spot welded freeze plugs will hold 7.62x39 but not for how long or at what rate of fire beyond a bolt action rifle and 20 rounds not splitting it. Inconel seems to be the shiz when it comes to making gun parts and is popular in commercial suppressors so I'd start there and check with the lugs over at ST.
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  7. Keith Moderator

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    Dec 7, 2014
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    The limit on a can is the size of the hole and if it can withstand the pressures that caliber generates. So, for a .30 caliber can, I would not go larger than what it is rated for. If you are looking into .338 or some other larger caliber, I would go with a can designed for that bore. JM2C
  8. Duaneh New Member

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    Nov 28, 2015
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    The calibers I listed are my max!
    But the main rifle I will be using for the suppressor is my 5.56 mvp flex.

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  9. jwb47 Active Member

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    just consult the manufacture , yhm is very helpful and Im sure any of the more main stream manufactures would do the same .
  10. jwb47 Active Member

    Member Since:
    May 4, 2014
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    the same can on all the rifles

    ak47
    [IMG]

    300 blackout

    [IMG]

    308

    [IMG]

    5.56

    [IMG]
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  11. Keith Moderator

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    Then I may have misread your post. The way I am reading it is that you were asking if you could use a bigger round with a .30 cal can.

    EDIT: Like Spamassasin said, make sure it's rated for .30-06 if you are going to use it on your .30-06 or .270.
  12. Duaneh New Member

    Member Since:
    Nov 28, 2015
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    Keith, I want a can for my mvp flex 5.56 but want swap to a 243 and I also have a 270 and 30-06.so I wondered what pros and cons to a30 call can for all!

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  13. Keith Moderator

    Member Since:
    Dec 7, 2014
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    If it it is rated for .30-06, it will work for all but not as well for the smaller calibers since the baffle holes will be a bit too big for .22 size bullets. There will be some gas leakage using it on a smaller caliber rifle, so the noise reduction won't be as efficient.
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