JMAC Customs has announced their latest offering for the AK-pattern with their new GBC-13 gas block, with or without detent hole.
The JMAC Customs GBC-13 gas block is patterned from the East German 74Nk front sight gas block combo.
JMAC Customs states “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. ”
+ 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
+ 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
+ Weighs 3.59oz
EXTRA GALLERY. CLICK TO ENLARGE
Categories: AK47 AK-47 AKM AK-74