TopMax ERGAL DMR ARI-BRAKE piston head for MARUI SRE – TMTPDMR-E-SRE

The DMR AIR-BRAKE piston head is made with CNC machined ERGAL on specific measures by TopMax Elaborazioni and it can be paired exclusively with TopMax Elaborazioni cylinder heads. The ERGAL structure make this piston head reliable, durable and incredibly suitable for any type of configuration. The DMR AIR-BRAKE piston head is made with axial-internal vacuum holes and radial output holes, with which provide better air distribution on the sealing O-RING, speeding up its dilatation during the compression phase.

The front shape of the AIR-BRAKE piston head has been designed to effectively convoy the air inside the PAD of the cylinder head reducing to the lowest point the sound of the impact with the cylinder head. The DMR AIR-BRAKE piston head has the double O-RING of sealing/stabilization, to avoid contact with the cylinder interal surface. The total height of the TopMax piston head is standardized to the size of the other piston heads on the market. The ERGAL and DELRIN insert for fixing the piston head on the piston, specific for Marui SRE platform, is CNC made and it has a new design that reduce the overhall weight of the piston head, reducing the striking mass too.