ProWin - M4/M16 - Hop-Up Unit
This item is currently out of stock. It will arrive soon.
Note: If you have a Polarstar in a VFC body, get one of these if you are having issues with feeding, it will work the best and it is what Polarstar recommends.
- Enhanced Air Seal
|Compatibility||TM M4/M16 Series AEGs|
DISCLAIMER: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.
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