JMac Customs GBC-13 - With Detent Hole
(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.
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
- 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 with detent and spring at 12 o'clock location (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
