Selling as I'm trimming some of the stuff I don't use much and this has only seen about two hours total game time. So some marks present from normal usage but certainly not beaten up and battered. 

Obviously it'd be a bit awkward to holster a pistol with this in, but a great bit of kit for those looking to use their G-Series pistol as a primary. 

I've found it does bump up the FPS quite significantly. For example my TM G19 shoots around the 260 mark with its own mags and 300 with this. As with any gas gun/mag, results can vary massively depending on gas used, ambient temperature, particular gun or just the Airsoft God's having shits and giggles.

Gas goes in the bottom, there's a high cap style trap door for pouring BB's into and then you draw them up through the G-Series mag, stopping at the feedlips with manual rotations of the front dial. You'll feel this mechanism tighten, so be careful not to overwind as it may break. This mag is currently working as it should, with no gas leakage. I cannot offer any guarantee beyond that.

Just so I don't get loads of messages enquiring as to whether this is compatible with a certain gun, all I can say is I've used it with an AAP-01 and TM "Glock" pistols. I'd be surprised if it didn't work perfectly in WE and Armorer Works Glock style guns too.

Stated price includes PayPal fees and postage. Please ask any questions via PM as I don't get notifications for anything asked on the listing.