[Zestaw] Magazynek AR15 GREEN GAZ, HPA Do karabinków CGS, MWS [CGS] + Zasobnik QD do magazynków gazowych QD CYMA CGS M4 [CYMA]

The mag is a very tight fit into my MTR16 rifle - not necessarily problem as I intended to use the mag with HPA so no need to remove it in-between reloading.
Good to note: the mag fits into Salvo Precision MCX like a proprietary mag
Compatibility - 3.5 out of 5. (However, I wasn't able to properly test this mag unfortunately to see what it was like shooting, full auto, FPS etc).

Removing the BB tubes, with gloves is not possible out of the box. The release catch is flush with the body of the mag and even if you have nails, they'll probably break or bleed.
I am exploring 3D printing a release latch for this mag to overcome this issue and make it far more "fit for purpose" when in the middle of a battle.
Design wise, I would score this 2 out of 5.
It might be better if you intend to run these on Green Gas and then swap the BB tubes once you went through your load out or inbetween rounds, but in my view this defeats what I would consider to be the main, primary purpose or intention of this mag.

So then why the 1 star rating.

On my first skirmish day with this mag (maybe it was my mistake buying just the 1 mag and 10 x BB tubes) the mag started leaking when the first game of the day began. I was running HPA at 100psi with the correct HPA valve for the mag.
Fine, maybe it just needed tightening or 'locktite' or other thread glue.

Somehow however, the thread of the valve port ended up being chewed through completely.
It's being worked on by the site technician at the moment and a new port is going to be drilled where there is more material available to hold the valve securely.

If I am able to; I will update this review/rating once I have been able to actually use it! It is a shame as I really was looking forward to trying this mag out with my MTR16 as opposed to running a HPA adapter.

Nice magazine, fits and works perfectly with Tokyo Marui MTR-16. Feeding and gas usage is good as well so compatibility fully confirmed from my side. Inlet valve placement is practical for me, but some “realsim” player might feel like its a “toy”.

This system is an absolute game changer for using GBBR's especially in winter but summer too for different reasons. Obviously you also need the multi gas magazine but the cyma CGS multi gas system is MWS compatible and I'm using it on a Salvo Precision MCX Spear LT V2. The system works flawlessly in semi but I can't get it to work correctly in full auto. The reason may be the refresh rate of my regulator or the flow rate of the outlet valve in the magazine or the reservoir in the magazine which is necessarily smaller than a standard gas mag. After the first shot or two the power drops off dramatically. Either way 99% of the time with a GBBR you shoot in semi anyway.

With all that said the fact you can HPA tap a single mag and then just change the BB tube is a great idea. The BB tubes extremely affordable I have bought 20, each holds 30 rounds and you can easily fit 4 into an MP5 mag pouch. I also bought the 8 Fields MP5 Hybrid Mag Pouch for this purpose which can hold all 20 tubes. GBBR mags are expensive, heavy and unreliable in cold weather. Ok maybe you loose a bit of the realism when your changing tubes instead of mags but I would rather the gun function and save huge amounts of money and weight as well as being able to carry much more BBs.

Apart from the full auto issue which may not be connected to the system but may be my regulator the only other issue is the ejection button on the bottom of the mag is basically impossible to operate with gloves on and the force with which the BB tubes eject is a little weak - meaning they don't eject very far making them difficult to remove with gloves on. I plan on 3D printing a larger ejection button that protrudes a little bit from the bottom of the mag to solve the first issue, the second may require a different modification. However neither issue has put me off this system.

I am in Ireland and the power limit is 1 Joule, I use the system with 0.4g BB's which are easily hopped by a GBBR especially when HPA powered and I have to say there is a very noticeable range and accuracy advantage over my AEG's and running Green Gas in the same rifle. This is a cheap system to get into and well worth a try. A multi gas mag (which comes with a BB Tub and 6 additional BB tubes can be bought for the price of 2 standard gas M4 mags.

It's also worth noting that if you don't HPA tap the mag via the dedicated port you can use the cyma CGS multi gas mag as a standard gas magazine. So really trying the system out is not a waste of money either way.

The magazines have terrible gas capacities (1.5 mags using propane) , fill valves are fragile and using metal fill adapters for propane will destroy the valves. The magazines are prone to leaking from the gasked and the aforementioned fill valve. They could be okay for HPA but I have no experience with it. But if you're thinking about buying CYMA CGS, go outside, clear your head and remove it from your cart.

Love the concept of the HPA ready M5 x1 thread and the cheap bb tubes, but as a consequence these mags have smaller gas resevoir. They will still get you a full mag of gas, but run off towards the end where others can do 2 or 3 mags before dropping in power. The cyma mags do work with TM (new gen) and the DE ghetto blaster and show good fit, but have slightly lower FPS output than TM or GM mags. If you run HPA or don't mind bringing along a gas refill the BB tubes are a game changer. Lockback keeps working and reloading still feels natural.

Ordered for DE noveske N4, need to modify magazine lips to properly feed BB's (little short from barrel side), also needs little shims to sit properly in magwell. Pros: QD tube which helps load BB's even without speedloader, and have HPA port to connect hose, and have ability to go HPA or Green gas. Overall this is not for plug and play, needs some work.

Something is wrong with this magazine. M4 with a regular SGS magazine gives 1.6 Joules on green gas. This magazine gives no more than 1.15 Joules. With a connected HPA line set to 130 Psi no more than 1.15 joules.
The feeding lips are about 1 mm lower than in standard magazines, the bb sits in it too tightly, so I had to use 6 mm drill to make them a bit wider.
At the same time, the rifle shoots very stably.