JMAC: GBC-13 Gas Block - With Detent Hole - NON-ADJUSTABLE

Brand :

(No reviews yet) Write a Review

(G)as(B)lock(C)ombo(13) Collab with Sabrewerks13

 (With) detent hole



PLEASE READ THIS FIRST: These come stripped, they do not include the windage drum, front sight post, detent, spring, or barrel component pins.

  • Windage Drum
  • Front Sight Post
  • Spring and Detent

This HAS a detent hole in the front

GBC-13 is a copy of the East German 74nk Front Sight Gas Block Combo

  • Perfect for Pistol, SBR, and Rifle builds to lighten up the front end and give it a custom look
  • Fits common 0.591" gas block barrel journals 
  • Adjustable Set Screw
  • Has 90* gas port and is a direct replacement for most 90* gas blocks, will work on 45* gas ports with minor gun-smithing
  • Uses standard front sight windage drum and pin, accepts standard AKM spring and detent
  • Has built in cleaning rod holder
  • Cast in the US using Wax Casting techniques similar to the modern Russian barrel components
  • Machined in the US
  • 4140 Heat Treated to Rockwell 32C
  • Black Nitrided in the US

We recommend having a Kalashnismith install.

It all started with a high definition scan of an original part from Larry Vickers, then we teamed up with Sabrewerks13 to oversee the casting process, and finally back to us for machining.