Hop-Up Rotary Chamber Specna Arms TDC Magnus™ with Helium™ Flat Hop rubber for M4/M16 replicas
Implemented in the Specna Arms Prime™ Hop-Up TDC Magnus™ rotary chamber (Top Down Centre) allows for very precise and stable adjustment (covered by European Patent number 015052069-0001). The set also includes a silicone rubber Helium™ Flat Hop and a dedicated spacer.