Retro Arms - M4/M16 - Hop-Up Unit
- High performance
- Increased air seal and durability
- Threaded Stabalizing Ring
- Rotary style hop-up unit
|Color||Silver or Black (depending on the batch)|
|Compatibility||TM and other comparable M4/M16 AEG|
NOTE: If you have a Polarstar in a VFC body, get one of these if you are having feeding issues, it will work the best and is what Polarstar recommends.
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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