G&R Tactical
Results 1 to 8 of 8

Thread: 10.5 suppressed tuning

  1. #1
    Join Date
    Nov 2014
    Location
    Northeast
    Posts
    328
    Feedback Score
    0

    10.5 suppressed tuning

    Iím running into expected issues tuning a 10.5 556 for suppressed and unsuppressed reliability

    Hereís what I found

    All setups using geissele super 42 buffer and spring and dead air sandman S

    Barrel is a 10.5 Rosco carbine gas

    Fail zero in my experience always cycled faster but has erratic ejection



    Fail zero H1 buffer

    Unsuppressed slightly overgassed 1 oíclock ejection

    Suppressed brass is smacking the deflector hard and going 12-1 oíclock


    Failzero H2 buffer

    Unsuppressed slightly overgassed with 2oclock ejection

    Suppressed is still too overgassed smacking deflector

    H2 with BCM BCG

    unsuppressed 330-4 oíclock ejection, no malfunctions but doesnít always lock back last round

    Suppressed is 3 oíclock ejection and pretty much perfect



    Iím going to try an H1 on the BCM but I believe it will be a bit overdone with the can


    Suggestions? I donít want adjustable gas blocks


    Sent from my iPhone using Tapatalk

  2. #2
    Join Date
    Aug 2011
    Location
    E. Tennessee
    Posts
    1,356
    Feedback Score
    5 (100%)
    I haven’t used them but a lot of guys will run the VLTOR A5system and tune them in. Looks like the Fail Zero H1 and H2 are working for you, the A5 might clean up what you dislike about them.
    ETC (SW/AW), USN (1998-2008)
    CVN-65, USS Enterprise

  3. #3
    Join Date
    Nov 2010
    Location
    MI
    Posts
    2,334
    Feedback Score
    20 (100%)
    Quote Originally Posted by boombotz401 View Post

    H2 with BCM BCG

    unsuppressed 330-4 o’clock ejection, no malfunctions but doesn’t always lock back last round

    Suppressed is 3 o’clock ejection and pretty much perfect



    I’m going to try an H1 on the BCM but I believe it will be a bit overdone with the can


    Suggestions? I don’t want adjustable gas blocks
    That H2 config is about the best you'll get without changing anything when swapping off the suppressor.
    Last edited by Clint; 08-05-18 at 17:41.
    Black River Tactical
    BRT OPTIMUM Barrels - 16" EXT, 11.5" CAR, 9" PDW
    BRT Covert Comps 7.62 + 5.56 + 9mm
    BRT MarkBlue Gas Tubes - BRT EXT and PDW Lengths
    BRT EZTUNE Gas Tubes - CAR and MID
    BRT MicroPin Gas Blocks .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  4. #4
    Join Date
    Jan 2008
    Location
    AZ-Waging jihad against crappy AR's.
    Posts
    24,490
    Feedback Score
    104 (100%)
    Yep, and that is what it was designed to use.

    Now for the A5. The A5H3 or possibly H4 will work and it will be much different than the standard set up.

    Quote Originally Posted by Clint View Post
    That H2 config is about the best you'll get without changing anything when swapping off the suppressor.



    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

    M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141

    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

  5. #5
    Join Date
    Nov 2014
    Location
    Northeast
    Posts
    328
    Feedback Score
    0
    The failzero is my least favored bcg I own, ejection is all over the place

    BCM bcg with H1

    Suppressed. 230 ejection and didnít have any issues

    Unsuppressed was interesting. The extractor continually did not extract the round causing a double feed and did not always lock back on the last round

    Inspection showed the extractor was a bit rounded so I called it a day and will test a Colt bcg tomorrow


    The failzero has been the most reliable but the smacking the deflector and 8í out to 1230 ruins it for me. Is there anyway to adjust that?


    Sent from my iPhone using Tapatalk

  6. #6
    Join Date
    Jun 2009
    Location
    AZ
    Posts
    4,341
    Feedback Score
    6 (100%)
    The best upgrade you can do, as has been suggested. A5 buffer , A5 buffer or you could add a A5 buffer. Colt Bcg should provide no different experience as BCM.

    PB
    "Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"

  7. #7
    Join Date
    Nov 2014
    Location
    Northeast
    Posts
    328
    Feedback Score
    0
    The A5 has come up multiple times and Iíve done some research, I donít see how itís an upgrade to invest in all new buffers to experiment with

    Could someone explain the benefit Iím missing?


    Sent from my iPhone using Tapatalk

  8. #8
    Join Date
    Jan 2008
    Location
    AZ-Waging jihad against crappy AR's.
    Posts
    24,490
    Feedback Score
    104 (100%)
    You didn't research much, because there are numerous threads that are several pages long describing it.

    Quote Originally Posted by boombotz401 View Post
    The A5 has come up multiple times and I’ve done some research, I don’t see how it’s an upgrade to invest in all new buffers to experiment with

    Could someone explain the benefit I’m missing?


    Sent from my iPhone using Tapatalk



    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

    M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141

    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

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
  •