Inner Barrel / hop up parts

-Color: Black  -Weight:5g70 degree..
-- Made from zinc alloy-- durable and accurate in feeding BB-- Design for replace the original hop U..
-- CNC machining-- Easy to adjust Hop-up instead of adjusting the gear-- More stable & accurate ..
-- CNC aluminum construction-- Surface treatment: Oxidation, looks more beautiful-- Re-designed Hop ..
--Made from imported fluorine silicone, 60 degrees--Professional and accurate crafts, both sides fla..
- Color:Transparent    -Weight: 5g-60 degree..
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