AirTac Customs x Retro Arms CNC Aluminum M4 Hopup
airtaccustoms.com
Sporting Goods / Outdoor Recreation

AirTac Customs x Retro Arms CNC Aluminum M4 Hopup

$36.99
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An exclusive collaboration between AirTac Customs and Retro Arms! Need the perfect hopup to use with a CRBN Upper without breaking the bank? The Retro Arms M4 Hopup is a fan favorite and has drop-in fitment with our CRBN Uppers! The hopup comes in a sleek black anodized aluminum with a laser-engraved AirTac Logo! This AirTac Customs x Retro Arms CNC Aluminum M4 Hopup includes: AirTac x RA Hopup: Complete CNC construction with Black Anodized finish Removable CNC Brass Side Wings for perfect alignment in any receiver (and perfect fitment in a CRBN Upper) Removable brass spacer to adjust nozzle length for HPA or AEG replicas Aluminum Rotary Dial Knob for fine hopup adjustments 4mm and 6mm bucking nubs to keep BBs shooting accurately and consistently on every single shot Extra nubs compatible with any hopping setup Compatibility: Accepts 21.00mm to 21.25mm nozzle lengths Full compatibility with all AEG buckings

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