Gas Block Combo 13 Collab with Sabrewerks13 With detent hole 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 for purchase here Windage Drum Front Sight Post Available with detent and spring at 12 o'clock location. Accepts standard AKM spri Mfg: Jmac Customs Llc
