MM Compensator Fit Guide: Harrier, Seagull and Firefly Compared
Match MM compensators to Harrier, Seagull and Firefly configurations using barrel length, body dimensions and BCAR clearance before ordering muzzle parts.
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MM Firefly Screw Pack
USD3.13
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Description
The screw set for Firefly. The receiver screws are now made of stainless steel for better durability.
UPDATE (13/7/2022): The main receiver screws have been changed from the short Phillips head screws to the longer Hex head screws.
UPDATE (14/7/2022): Some of the screw packs will have a mix of the old receiver with the new Hex head screws.
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