Results 1 to 7 of 7

Thread: Subsonic Feed issues

  1. #1
    Join Date
    Jan 2019
    Posts
    25
    Feedback Score
    0

    Subsonic Feed issues

    Hello, I am currently having some 300Blk feeding issues and looking to see if anyone can give any insight. It cycles everything supersonic fine, But when it comes to subs she struggles. It has a dedicated nomad 30 suppressor on it. BA pinned .750 gas block. Rest of parts list will be listed Below. It has an A5 buffer system, but i have to drop it down to a A5H0 to get it to pick up a new round 50% of the time. Never locks open, Again this is with subsonic ammo. Any insight is great.

    BCM upper
    10.3 Ballistic advantage barrel w/ .750 pinned gas block
    Black river tactical EZ tune gas tube.
    SLR rail.
    Black river tactical BCG
    A5H0 and springco Green spring.

  2. #2
    Join Date
    Sep 2011
    Location
    WA
    Posts
    1,189
    Feedback Score
    0
    Being suppressed, I would think it would cycle fine.

    What mags you using??


    Maybe the EZ tune tube is restricting too much??


    I run a 8.5" and cycles 220 gr subs just fine without being suppressed.

    Sent from my SM-G991U1 using Tapatalk
    The price of liberty is, always has been, and always will be blood: The person who is not willing to die for his liberty has already lost it to the first scoundrel who is willing to risk dying to violate that person's liberty! Are you free?
    --- Andrew Ford

  3. #3
    Join Date
    Sep 2011
    Location
    WA
    Posts
    1,189
    Feedback Score
    0
    Just seen that it doesn't lock back.

    Do you have a standard gas tube??

    I would try that first.

    Sent from my SM-G991U1 using Tapatalk
    The price of liberty is, always has been, and always will be blood: The person who is not willing to die for his liberty has already lost it to the first scoundrel who is willing to risk dying to violate that person's liberty! Are you free?
    --- Andrew Ford

  4. #4
    Join Date
    Jan 2019
    Posts
    25
    Feedback Score
    0
    3 different mags, metal surefeed, lancer 300blk mag, and Magpul 300blk mag. My guess is probably the gas tube may be restricting like you said, but wanted to get some opinions incase.

  5. #5
    Join Date
    Jan 2019
    Posts
    25
    Feedback Score
    0
    Quote Originally Posted by 223to45 View Post
    Just seen that it doesn't lock back.



    Do you have a standard gas tube??

    I would try that first.

    Sent from my SM-G991U1 using Tapatalk

    Will have to see if I have an extra gas tube if not I’ll pick one up and give it a try. And it never locks back with subs, and it 50/50 cycles a new round. Either cycles or dosnt pick one up, but at random.
    Last edited by colt107; 10-19-21 at 22:19. Reason: More context

  6. #6
    Join Date
    Nov 2010
    Location
    MI
    Posts
    3,516
    Feedback Score
    22 (100%)
    What is your order #?
    Black River Tactical
    BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
    BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
    BRT Bolt Carrier Groups M4A1, M16 CHROME
    BRT Covert Comps 5.56, 6X, 7.62

  7. #7
    Join Date
    Jan 2013
    Posts
    2,688
    Feedback Score
    40 (100%)
    Were you having overgasing issues before you installed the EZ tune gas tube? I am confused why you chose to go that route vs an adjustable gas block on a 300 blackout gun?

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •