The Seal Nozzle Aluminum for G36C from BD (Big Dragon) is a reinforced internal upgrade designed for G36C AEG platforms, engineered to improve air compression efficiency, enhance durability, and provide more consistent gearbox performance.

Manufactured from CNC-machined aluminum, this nozzle offers a rigid and wear-resistant structure that maintains stable dimensions under repeated cycling. Compared to standard polymer nozzles, the aluminum construction provides increased mechanical strength and long-term durability, making it suitable for both stock replacements and upgraded builds.

A key feature of this nozzle is its “seal” design, meaning it is engineered to improve air compression through tighter tolerances rather than relying on an internal O-ring. This helps reduce air loss between the cylinder head and hop-up unit, resulting in more stable FPS output and improved shot-to-shot consistency.

With a length of approximately 23 mm, it is specifically designed for G36C AEG platforms. Proper nozzle length is critical in this system, as even small variations can affect BB feeding timing and air seal alignment, potentially leading to misfeeds or inconsistent performance.

Precision machining ensures a consistent fit within the gearbox tappet system, allowing smooth cycling and reliable interaction with the hop-up bucking. It is typically compatible with CYMA-style G36 platforms, but may not fit all brands such as certain Jing Gong variants due to small dimensional differences.

Key Features

Seal Nozzle Aluminum for G36C from BD (Big Dragon)
CNC-machined aluminum construction for durability and rigidity
Seal-type design (no internal O-ring) for improved compression
Enhances FPS consistency and air efficiency
Approx. 23 mm length for G36C AEG compatibility
Improves feeding reliability and gearbox stability
Designed for CYMA-spec G36C platforms (not all clones compatible)
Precision fit for smooth tappet plate operation

A durable and efficient internal upgrade designed to improve air seal performance, consistency, and reliability in G36C AEG gearbox builds.