Hop Unit Parts

A unique mixture of ingredients
Finer-range adjustability of BB's trajectory
More consistent on the Hop-Up pressure
Compatible with all Marui spec AEGs
Recommend using it with our Flat Hop-Up bucking

MATERIAL: MILITARY GRADE POLYMER
SUPER DURABLE!!!!!!!!
COLOR: TACTICAL GREY

One-Piece Hop Up Arm design

Polymer Hop Up Chamber x 1, O Ring x 1

This barrel bushing is made by precision CNC process. It has high precision T.Marui dimension with smooth surface. It's strengthen construction provides outstanding durability. Therefore it carries the barrel set perfectly into the upper receiver, and