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Rifle Parts Gas System Parts Gas Blocks JMAC CUSTOMS GAS BLOCK COMBO WITH DETENT HOLE Support

The JMAC Customs Gas Block Combo features a detent hole, fits 0.591" journals, and is ideal for custom builds, enhancing performance and aesthetics.
-9 %

JMAC CUSTOMS GAS BLOCK COMBO WITH DETENT HOLE

100800074
Variations
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Variations:

Variations:

-9 %
The JMAC Customs Gas Block Combo features a detent hole, fits 0.591" journals, and is ideal for custom builds, enhancing performance and aesthetics.
GAS BLOCK COMBO WITH DETENT HOLE
154.9 GBP 2 £154.90 * £169.90
In stock
Style: Front Sight Product no.: 100800074
In stock
154.9 GBP 2 £154.90 * £169.90
The JMAC Customs Gas Block Combo features a detent hole, fits 0.591" barrels, and is perfect for custom Pistol, SBR, and Rifle builds with a lightweight design.
GAS BLOCK COMBO WITH DETENT HOLE - GAS BLOCK COMBO WITH DETENT HOLE - ADJUSTABLE
169.9 GBP 0 £169.90 *
Not available
Style: Front Sight Product no.: 100800075
Not available
169.9 GBP 0 £169.90 *
154.9 169.9 2 GBP
-9 %
MSRP £169.90
154.9 GBP £154.90

Prices inclusive of duty & VAT.

Product no.: 100800074

Mfr. No.: GBC-13-W

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 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 JMAC recommends having a Kalashnismith install.
In stock 2 pcs. in the USA warehouse
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Delivery time approx. 7-14 days.

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154.9 169.9 2 GBP
Description Specification Customers reviews Accessories

JMAC CUSTOMS GAS BLOCK COMBO WITH DETENT HOLE

-9 %
MSRP £169.90
154.9 GBP £154.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.
Requires order by phone

Description:

Enhance your firearm with the JMAC Customs Gas Block Combo!

The Gas Block Combo from JMAC CUSTOMS is a premium upgrade designed for optimal performance and aesthetics.

Key Features:

  • Collaboration with Sabrewerks13 for a unique design.
  • Equipped with a detent hole for enhanced functionality.
  • Based on the East German 74nk Front Sight Gas Block Combo.
  • Ideal for Pistol, SBR, and Rifle builds.
  • Fits common 0.591" gas block barrel journals.
  • Features a 90° gas port and serves as a direct replacement for most 90° gas blocks.
  • Compatible with 45° gas ports with minor gunsmithing.
  • Uses standard front sight windage drum and pin (available for purchase separately).
  • Available with detent and spring at the 12 o'clock location.
  • Accepts standard AKM spring and detent.
  • Includes a built-in cleaning rod holder.
  • Cast in the US using Wax Casting techniques similar to modern Russian barrel components.
  • Machined and 4140 Heat Treated to Rockwell 32C in the US.
  • Finished with Black Nitriding in the US.

For best results, JMAC recommends having a Kalashnismith install this gas block.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The GAS BLOCK COMBO is a collaboration with Sabrewerks13 featuring a detent hole, ideal for customizing pistols, SBRs, and rifles.
  2. Compatible with 0.591" barrel journals and can replace most 90* gas blocks, also works with 45* ports with some gunsmithing.
  3. Manufactured and machined in the US, this gas block is cast using wax techniques and is heat treated and black nitrided for durability.

Attributes

  • Style: 
    Front Sight
  • Delivery weight: 0.104kg
  • Shipping height: 19mm
  • Shipping width: 102mm
  • Shipping length: 146mm

Item details

Made in USA
US export classification: 0A501.x

Customers reviews

Customer ratings (0)

0 / 5

Variations:

-9 %
The JMAC Customs Gas Block Combo features a detent hole, fits 0.591" journals, and is ideal for custom builds, enhancing performance and aesthetics.
GAS BLOCK COMBO WITH DETENT HOLE
154.9 GBP 2 £154.90 * £169.90
In stock
Style: Front Sight Product no.: 100800074
In stock
154.9 GBP 2 £154.90 * £169.90
The JMAC Customs Gas Block Combo features a detent hole, fits 0.591" barrels, and is perfect for custom Pistol, SBR, and Rifle builds with a lightweight design.
GAS BLOCK COMBO WITH DETENT HOLE - GAS BLOCK COMBO WITH DETENT HOLE - ADJUSTABLE
169.9 GBP 0 £169.90 *
Not available
Style: Front Sight Product no.: 100800075
Not available
169.9 GBP 0 £169.90 *

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