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GBC-13 Adjustable Gas Block Combo with Detent - JMac Customs

Name: GBC-13 Adjustable Gas Block Combo with Detent - JMac Customs
Brand: JMac Customs
SKU: retailer_offer:atlanticfirearms.com:11896
Availability: InStock

Lowest Listed Price

$129.95

MSRP

$129.95

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1 Stores

Updated

Aug 26, 2026

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Specifications

Brand

JMac Customs

Description

Jmac Customs GBC-13 Adjustable Gas Block Combo Jmac Customs GBC-13 Gas Block Combo Durable 4140 Steel Black Nitride Finish Heat Treated East German 74nk Gas Block Replica GBC-13 Adjustable Gas Block Combo with Detent - JMac Customs. Durable 4140 steel gas block combo with a black nitride finish. High-quality replica of the East German 74nk gas block, designed to enhance AK builds with a lightweight yet durable construction. Works with 0.591" barrel journals, fits 90° gas ports.