NBU set for M4,SR16,M733 [Guarder]NBU set for M4,SR16,M733 [Guarder]

NBU set for M4,SR16,M733

Manufacturer: Guarder
Product SKU: 368
Availability: Not in stock

Full NBU air system for power increase. Include chromium-plated cylinder, polycarbonate back pressure piston head with the bearing, stainless cylinder head with double O-rings and acetal nozzle with O-ring.

What is NBU? : NBU parts have increased inner diameter to hold more air capacity. It is ussually cylinder, piston head, cylinder head and nozzle. Typically sold as a complete set.  It is recommended use M120 springs or higher to reach proper effect.

 Material  S303 Stainless Steel/Brass/Polycarbonate/Acetal
 Application  M4,SR16,M733
 Purpose  Durability,better sealing, power increase
 Weight  78,4g (complet)