Griffin GI Armorers Wrench

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The Griffin GI Armorers wrench is a 4140 steel wrench, hardened to 44RC. That is black oxide and oil dipped. Some finish irregularity is common to this industrial tool. The wrench allows installation of Griffin Muzzle devices, Castle nuts on AR firearms, Griffin Low Pro Rigid rails, and interfaces with many Griffin Silencers for maintenance or configuring. This tool also features M4 barrel nut geometry, and beverage entry tool for easy access to your favorite bottled beverage.



  • 4140 Steel hardened to 44RC

  • Black oxide/ Oil dipped 

  • 3/8" Drive 
  • 3/4" wrench

  • 5/8" wrench 

  • 1/4" bit driver/ lanyard loop

  • Taper Mount extractor

  • USGI M4 barrel nut geometry

  • Screw driver

  • Beverage entry tool


1 Review

  • 5
    1st time buyer, suggested acessory purchase

    Published by B C R on 6th May 2024

    after purchasing my very 1st Silensor ( PSR7) for my ARs 308 & 556, i read the listed recomendations on the accesory list and purchased 1 of each. Upon arrival with very fast shipping, I took each item to my FFL / Gun Armorer to instruct me on it uses for when needed. This wrench,besides opening bottles, woud only be required for deep emergency use on range, or if starting a new build. I will be soon!. Highly recmended by the FLL to have in Range Bag. No regrets Works with multiple rifles and calibers, and fits thorouly as well. If you dont have a Armorer wrench yet, or need one for a Griffen build, this is the one to use. 10 out of 10 highly recommend. - it opens cold refreshments..cant go wrong.