This MK4 jig is fabricated to fit a specific gas block, this model is for BCM and Vltor specific gas blocks. The MK4 fixed jig is fabricated from carbon steel and mounts to the gas block set screw holes using longer provided set screws. The drilling guide hole is located on the OD of the barrel to provide 50% pin diameter in the barrel. Stock drilling hole size is #31 (0.120"). The jig is drilled to mount the barrel at a 1" center. The Jig will include needed set screws and nuts and one #31 HSS drill.
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124.9124.91GBP
Product no.: 430108872 BLACK RIFLE DISEASE ENGINEERIN MK4 DRILLING JIG FOR BCM AND VLTOR GAS BLOCKS Mfr Part: MK4BO1 This MK4 jig is fabricated to fit a specific gas block, this model is for BCM and Vltor specific gas blocks. The MK4 fixed jig is fabricated from carbon steel and mounts to the gas block set screw holes using longer provided set screws. The drilling guide hole is located on the OD of the barrel to provide 50% pin diameter in the barrel. Stock drilling hole size is #31 (0.120"). The jig is drilled to mount the barrel at a 1" center. The Jig will include needed set screws and nuts and one #31 HSS drill.
124.9GBP23£124.90
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Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
This MK4 jig is fabricated to fit a specific gas block, this model is for BCM and Vltor specific gas blocks. The MK4 fixed jig is fabricated from carbon steel and mounts to the gas block set screw holes using longer provided set screws. The drilling guide hole is located on the OD of the barrel to provide 50% pin diameter in the barrel. Stock drilling hole size is #31 (0.120"). The jig is drilled to mount the barrel at a 1" center. The Jig will include needed set screws and nuts and one #31 HSS drill.