13mm Rizer Universal Hop Up

13mm Rizer Universal Hop Up

Features:
Compatible with outer barrel with internal diameter below 13.5mm
Ultra small 13mm hop up makes it to fit most ccw fire cap flash hiders inner dia above 13mm
Increase accuracy and range
Lower and upper pressure levels are adjustable
With electric tape, it's easy to install and remove
Removable tongue and base plate for easy cleaning

Specifications: 
Brand: rizer
Front Outer diameter: 13mm
Rear diameter: 11mm
Length: 35mm
Material: high quality nylon
Color: black

Package: 1x rizer hopup with allen key and screws

Note: the color is full black