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I need some schooling...

Discussion in 'Free Fire Zone' started by SIGShooter, Feb 18, 2011.

  1. SIGShooter

    SIGShooter Hucklebucks

    4,208
    0
    Jan 25, 2005
    Okay, here it is...

    Gas block: clamp style or pinned

    Noveske Switchblock: is it worth it or not? I will be running suppressed and unsuppressed.

    Barrel and gas port erosion: is it more prevalent while using a sbr?

    SBR and carbon fouling: is it more predominant, carbon build up, using a sbr as opposed to a standard length barrel? Which would go back to using the switch block from noveske.

    Buffer spring assembly: do I need to be using a different style or weight while using a sbr and suppressor?

    In regards to the sbr...it is going to be a MK18 built on a colt LE6920. I will be using the M4-2000 AAC suppressor

    I appreciate any and all the help and advice you all have!
     
  2. mjkeat

    mjkeat

    3,447
    3
    Jun 17, 2009
    Midwest
    I will refer you to m4carbine.net. You might find more in depth advise there.
     

    Last edited: Feb 18, 2011

  3. SIGShooter

    SIGShooter Hucklebucks

    4,208
    0
    Jan 25, 2005

    I have been doing a ton of research there. I don't have the ability to get an account because I don't have a paid email account.
     
  4. mjkeat

    mjkeat

    3,447
    3
    Jun 17, 2009
    Midwest
    I dont think m4carbine required a paid account. I think thats arfcom. I dont have a paid account and am a member of m4carine.net.

    Research is key. Itll save you a lot of money.
     
  5. SIGShooter

    SIGShooter Hucklebucks

    4,208
    0
    Jan 25, 2005

    Thanks for the heads up. I will try again tonight. I appreciate it!
     
  6. mjkeat

    mjkeat

    3,447
    3
    Jun 17, 2009
    Midwest
    silencertalk.com is a good resource as well
     
  7. SIGShooter

    SIGShooter Hucklebucks

    4,208
    0
    Jan 25, 2005
    Thank you gentlemen!

    I got an account at M4carbine. I will hopefully be able to post there soon.

    I appreciate the heads up from you guys!
     
  8. boomhower

    boomhower

    3,323
    2
    Feb 14, 2010
    North Carolina
    I'll suggest a NiB BCG for your surpressed set-up. As you know they are dirty as all get out, it will make your life a lot easier. If you don't want to spend that much at least go with a chromed one.
     
  9. crazymoose

    crazymoose Nonentity

    4,440
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    Feb 9, 2005
    Pinned gas block for hard use. Short barrels/gas systems, coupled with cans, will always run harder and dirtier than longer, unsuppressed setups. A switchblock will ameliorate much of this, and is recommended.
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  10. SIGShooter

    SIGShooter Hucklebucks

    4,208
    0
    Jan 25, 2005

    I was thinking of doing the Fail Zero for my current BCG. I like the fact that Colt uses the FA BCG. Added weight helps from what I've researched. Plus, I don't have to purchase a new BCG.
     
  11. SIGShooter

    SIGShooter Hucklebucks

    4,208
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    Jan 25, 2005

    A lot of the searching I have done has yielded me a lot of clamp/set screw style gas blocks.

    Do you have a recommendation for a specific pinned GB?
     
  12. surf

    surf

    1,019
    4
    Jul 7, 2010
    There are options for set screw or clamped gas blocks, but pinned is always a more durable choice.

    Very worth it and pretty much a given for suppressed SBR's.

    In theory yes. How much a shooter actually notices such a thing is dependent on volume and rate of fire over time.

    Carbon fouling in an SBR is more predominant in a suppressed system as the suppressor collects and holds gasses within the system causing various issues in regards to carbon. This is the short answer.

    Maybe. I know that isn't a definitive answer but there are too many variables here to give a definitive answer. There are known combination's of barrel length, gas port sizing, ammo types, springs and buffer weights. But nothing is a guarantee.

    Sounds like a great set up. I personally run a M4A1 MK18 10.3" that is not suppressed. Standard carbine spring and H buffer. Runs like a champ. Personally if I were going suppressed I wouldn't run a 10.3" MK18 barrel. I would probably look into a barrel in the 11.5" - 12.5" range as that length seems to be more suppressor friendly.
     
  13. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    I have a set screw type low-pro block on my Mk. 18 build. However, when the block was installed, the smith I use slightly dimpled the barrel under the screws, allowing the ends of the screws to set slightly into the barrel, then used a generous amount of high-heat loctite to set the screws well in place. It may not be QUITE as strong as a pinned block, but I bet it is damn close.
     
  14. SIGShooter

    SIGShooter Hucklebucks

    4,208
    0
    Jan 25, 2005

    Outstanding!

    Thank you for the information!

    I am still reading on M4carbine. There is a whole **** load of information there for all my wants and needs. I'm reading about 3-4 hours a night on stuff I thought I knew but figured out I didn't know **** about!

    Let me throw this out to you&#8230;

    MK18
    10.5" Barrel
    KAC Inconnel Flash Hider w/KAC Supressor

    OR

    AAC 51T Muzzle Break w/M4-2000
    Full Rail
    Low Pro Gas Block
    KAC Micro BUIS 300M
    Larue T1 Mount
    T1 Sight
    SOPMOD stock

    Still not sure on the Noveske SB. I'm coming up with a 50-50 type of response in needing it or not. Those who use it love and those who don't use don't think it's needed.
     
    Last edited: Feb 22, 2011
  15. Fireman1291

    Fireman1291 Firefighter/EMT

    2,487
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    May 17, 2005
    Land O lakes, FL


    You could just order a Noveke SBR upper and save yourself a headache. It'll be assembled correctly and youll save some money. And the KAC triple brake wont allow mounting of the M4-2000. And get the 51T brake not the flashhider. The brake will lessen the damage on the 1st blast baffle for being on such a short barrel.

    H2 buffer

    Switchblock
     
  16. Fireman1291

    Fireman1291 Firefighter/EMT

    2,487
    56
    May 17, 2005
    Land O lakes, FL
    Last edited: Feb 22, 2011
  17. SIGShooter

    SIGShooter Hucklebucks

    4,208
    0
    Jan 25, 2005

    $1315.00...I don't like Noveske that much to spend that kind of dough. A hundred and change, okay, but not that much.

    I am aware that I cannot use the M4-2000 with the KAC Inconnel. That's why I listed the AAC 51T Muzzle Break. From the research I have done, the muzzle break is a great investment for preserving the can.