Set cylinder (Bore-Up) for AK47/AK47S (NEW) - SHS

Cylinder Bore-up Set for AK 47/ AK 47S
This is a complete set of air conditioning.

• Nozzle – 19.7 mm long, aluminum, single O-ring seal
• Cylinder Head – Aluminum, funnel-shaped rubber stopper, two O-ring seals
• Cylinder – Aluminum, ribbing to improve thermal properties.
• Piston Head – Material POM – Polyacetal, a strong and lightweight plastic that does not suffer from shape changes (bursting) like aluminum heads.

Bore-up is the name for parts that have an enlarged shape to accommodate the largest possible volume of air. Simply put: more air in the cylinder means greater pressure in the barrel and thus increased guns performance. These parts are primarily intended for guns with longer barrels, or when replacing the basic barrel with a longer one (e.g., by extending the inner barrel into the silencer).
However, Bore-up sets require sufficient power to achieve the desired performance, so it is generally recommended to use M130 springs and above.

• Compatibility with other sets: NBU Guarder, NBU Systema
• Compatibility with gearboxes: Gearboxes according to Tokio Marui standard