AK Gas Block – GBC-13 – JMac Customs

$119.95$129.95

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

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
  • 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 (available for purchase here – Windage Drum Front Sight Post
  • Available with detent and spring at 12 o’clock location (available for purchase here – Spring and Detent) (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
Clear

Additional information

Weight 0.9 lbs
Detent Hole

With Detent Hole, Without Detent Hole

Adjustable

Non-Adjustable, Adjustable

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