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JMAC CUSTOMS GBC-13 FRONT SIGHT/GAS BLOCK COMBO WITH DETENT

Description

 

JMac Customs GBC-13-With Detent Hole

This does have a Detent Hole in the Front

  • 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 gunsmithing
  • Uses standard front sight windage drum and pin
  • Available with detent and spring at 12 o'clock location
  • 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

GBC-13 is a copy of the East German 74nk Front Sight Gas Block Combo
 

Shipping $7.95 VIA USPS Priority / First Class Mail



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 JMac Customs for machining.

 

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Atlantic Firearms,llc
10337 Bunting Road
Bishopville, MD 21813
Office: (410) 352-5183
Voice: (410) 352-5183
Fax: (410) 352-3374