RetroArms CNC Split Gearbox V2 (8mm) - QSC

Retro Arms CNC Split Gearbox V2 (8mm) - QSC is a state of the art CNC machined gearbox designed for electric powered AR15 (M4) and M16 models equipped with Ver2 gearbox. This durable and easy to install gearbox offers the best possible performance and durability. It is made from a single block of aluminum (Dural) EN AW 7075 T651, which is significantly stronger than standard structural steel.

The Retro Arms CNC Split Gearbox is divided into an upper and lower part, which makes it easier to install parts and adjust the mechanism. This split gearbox allows for convenient handling of the internal parts without having to remove the entire gearbox from the gun frame. The gearbox is compatible with various AR15 (M4) Hop Up chambers and can also be installed on slightly tilted frames. The recommended nozzle length is 21.4 mm, but it may vary depending on other parts.

The gearbox features several improvements, including spring retainer slots, a groove for increased cable space, and a reinforced structure around the cylinder head. It is also equipped with the Quick Spring Change System (QSC), which allows the spring to be replaced without opening the gearbox.

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