Airtech Studios Advanced R-HOP Arm for G&G Rotary Hop Up Units

The Airtech Studios ARA - or Advanced R-HOP Arm, is specially designed to be a drop-in upgrade to mitigate the risk of modifying the original arm to give a perfect, evenly forced pressure on the R-Hop patch.  Special types of nubs will no longer be required as this is incorporated to this arm. Features: Made with high strength, fiber reinforced, injection molded polymer Airtech Studios R-hop and Flat-hop Arm For G&G M4 Rotary Series Compatible with G&G's new rotary hop up system Provides perfect top-down-center force evenly across a R-Hop patch Easy to install drop-in hop up arm, no modification required No need to modify the stock arm or use special aftermarket nubs **NOTE** G&G hop up unit / chamber NOT included