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![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](https://airsoftpro.cz/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-1.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](https://airsoftpro.cz/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-2.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](https://airsoftpro.cz/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-3.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](https://airsoftpro.cz/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-4.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](https://airsoftpro.cz/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-5.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](https://airsoftpro.cz/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-6.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-1.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft] ![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-2.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft] ![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-3.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft] ![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-4.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft] ![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-5.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft] ![CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft]](/images/stories/virtuemart/product/cnc-hopup-chamber-m4-gen-2-6.jpg)
CNC ProWin style rotary M4 Hop-Up chamber, Gen.2 [JJ Airsoft] CNC ProWin style rotary M4 Hop-Up chamber, Gen.2
CNC Hop-Up chamber for M4 AEG guns.
The chamber is manufactured on precision CNC machines from a single piece of aluminum and is surface anodized. This gives it significantly greater durability, allows for higher performance, and is more reliable in feeding BBs.
All small parts are included, including the barrel lock.
JJ Airsoft
Hong Kong company JJ Outdoor Co., Limited is reliable supplier of outdoor equipment and airsoft accessories and spare parts. Since 2011 the company is developing many useful airsoft accessories branded as JJ Airsoft. Such as red dots, scopes, killflashes, riser mounts, front grips in many versions, rails covers, clever hand stops, tactical gears etc.
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