Lonex POM Ventilated Piston Head Hopup Can take up to a

Can take up to a M190 spring with no upgrades needed

Essential elastic retention and the adjustable top hook-and-loop flap closure securely keep the magazines in place

The PM fires the 9x18mm Makarov Cartridge which is the most powerful cartridge for fitting its straight blowback operation

Lens covers included

Precision Cut Out Foam Inlay

Lonex POM Ventilated Piston Head Hopup Can take up to aThe LONEX POM Ventilation Ball Bearing Piston Head is a great cost effective high end replacement for your standard Airsoft AEG rifles piston head. The LONEX POM Ventilation Piston Head comes with ball bearings that help relieve spring stress. This piston is designed to deliver great performance and compression.