This slr hop is Compatible with Jingji SLR, STD SLR gel blaster toy gun.

Can be mounted with a muzzle or flash hider.

Specifications:

Brand: DK.

Feature: adjustable, directly insertion.

Material: 3d print PLA.

Outer dia: 19mm.

Package includes: 1x std slr hop up.

Note: use 502 or other glue to fix it if possible..

Gel Blaster Hop Up Installation Video: