Wadsn - EXPS & G33 Magnifier Set Dark Earth Barrel the Hop up Chamber ME

the Hop up Chamber ME Sport unit is specially designed with a BB Catching System to prevent dropping BBs after removing the magazine

The pull is quite tough

Caliber 6 mm BB

Multiple Carrying Ways Per-Fit Holster is compatible with 4 different carrying platforms  paddle (standard)

This is one strong gearbox

Wadsn - EXPS & G33 Magnifier Set Dark Earth Barrel the Hop up Chamber MEWADSN EXPS and G33 Magnifier Set (Dark Earth) The WADSN EXPS and G33 Magnifier Set in Dark Earth is a good choice for any airsoft player that wants magnification with the ability to revert to fixed sight at any moment. This WADSN Magnifier is solidly built and easily mounted to any 20mm rail mount, with an easy tighten thumb bolt. This sight has a the ability to flip to the side using a quick response button. Features: Includes sight and magnifier