MBLOCK CNC ALUMINUM HOP UP CHAMBER FOR M4 AIRSOFT PRO (AiP-4033)

MBLOCK ™ reinforced hop up chamber.
CNC 6061-T6 aluminum material with anodized finish.
Designed for M4 series electric guns (AEG).
Improves performance, sealing.
It offers a better draft of the shot.
Including presser, rubber and key for delta ring.

MBLOCK ™ FEATURES:
(Mechbox Block) is a patent and registered trademark for this stiffening mechanism.
It is integrated on the HOP UP group and serves to fill the space around it.
Maintains the front and prevents breakage of HOP UP & GEAR BOX.
It keeps the HOP UP firmly and promotes better functioning.