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Do you have a Hellfire 3D print project and want to have the strongest fastener, tool and receiver extension parts possible? These are made on a Markforged Mark Two 3D printer with 100% infill for the Onyx material (chopped carbon fiber reinforced nylon) with continuous carbon fiber reinforcement on specific layers.
More information about continuous carbon fiber reinforced printing can be viewed HERE.
Limit castle nut torque to about 20 foot pounds.
Note: Main lower receiver, front lug and decorative medallion pieces are not included!
These are made to order. Please allow extra time for shipment.