GBC-13 - Front Sight Gas Block Combo - 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. US Made
*** This HAS a detent hole in the front ***
GBC-13 is a copy of the East German 74nk Front Sight Gas Block Combo
We recommend having a Kalashnismith install these