Out of Battery Hammer Drop?

Discussion in 'RDB Bullpup Rifle' started by anach, Aug 6, 2020.

  1. anach

    anach Member

    12
    Jul 18, 2020
    Hi, just took ownership of a new RDB-Defender and I noticed that I can drop the hammer when the safety flag is in the chamber and the bolt not in battery. Obviously, there wasn't a risk of out of battery detonation in this case, and the firing pin was still recessed in the bolt carrier, but is this normal behavior?
     
  2. WolfWings

    WolfWings Well-Known Member

    295
    Feb 19, 2020
    Kansas City
    Safety flag doesn't prevent any mechanisms from operating normally, it's purely just a chamber plug that shows the chamber doesn't have a round in it; was the safety lever/bar on Safe or Fire?
     
    Vault Distribution likes this.

  3. anach

    anach Member

    12
    Jul 18, 2020
    I know the flag doesn't change the mechanism interactions, I did however expect the FCG to have some way to prevent out of battery detonations. With the flag, the bolt is about 1/2" out of battery (thickness of the flag body).

    The safety selector was on fire and the mechanical safety is fully functional when on safe.
     
  4. kdgrayson

    kdgrayson Member

    4
    Jul 19, 2020
    I just picked up my RDB-S yesterday. I also noted it would release its hammer with the bolt out of battery. The firing pin can only contact the primer when the bolt is fully locked in the breach. As soon as the bolt begins to unlock (and well before it is fully unlocked) the bolt and bolt carrier as a group start to lengthen such that the firing pin can't reach the primer.
     
  5. anach

    anach Member

    12
    Jul 18, 2020
    Thanks for confirming this is normal for the RDB.
     
  6. iamscottasus

    iamscottasus Well-Known Member

    Feb 21, 2014
    My 2017 is the same. I drop the hammer by riding the BCG all the time, for storage.
     
  7. RogueIV

    RogueIV Well-Known Member

    283
    Dec 2, 2018
    The hammer can fall out of battery but the firing pin will not impact the primer out of battery. The bolt has to cam in before the firing pin will protrude and hit the primer. This is the same with the AR platform. In other words it's perfectly safe.
     
    Vault Distribution likes this.
  8. anach

    anach Member

    12
    Jul 18, 2020
    Thanks, I only have experience tuning the lockwork in handguns, most of which have out of battery interlocks.
     
  9. RAMLAKE

    RAMLAKE Member

    7
    Aug 4, 2011
    Atlanta
    Desert tech MDR,
    ARs, M14s, AKs and Ruger minis will all drop the hammer before fully in battery
     
    RogueIV and Vault Distribution like this.