JMAC CUSTOMS DEBUTS GBC-13 AK PATTERN GAS BLOCK

jmac customs gbc-13 gas block 74nk ak47 gas block east german ak  7.jpg

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. ”

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KEY SPECIFICATIONS:

+ 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

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To learn more about JMAC Customs and the GBC-13 gas block. CLICK HERE

jmac customs gbc-13 gas block 74nk ak47 gas block east german ak  1.jpg

EXTRA GALLERY. CLICK TO ENLARGE

 

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