I've had the gun for some time now and fielded it stock at an FPS of 397 with .20 gram BBs. I haven't handled the gun with kid gloves so I've found a few problems in build quality that makes me slightly more hesitant. The receiver and stock is all steel, which is a huge plus personally, but the steel ends there. The front sight, gas block and sight block are all pot metal. Attaching a more modern flashhider required me to cut a piece of the muzzle off thanks to the the liberal use of glue required to make the orange tip 'permanent'. Perhaps with more patience I might have found another way but I only had hand tools. The gas block itself has already sheared in half after accidental force was applied to the cleaning rod, which also fell out on the field. I am currently looking to get them replaced with real steel Romanian AK parts and the broken parts are held in place with superglue. Luckily, it's invisible except on close inspection. Until that part gets replaced, I would not trust the bayonet lug with a GP-25 or 30. As a random note, the M9 rubber bayonet does not fit the AK style bayonet lug. The sling point is another concern. Compared to the rest of the gun, it is very flimsy and while it hasn't failed, it has warped with the weight of the gun on a 1pt sling system. The folding stock is not perfectly consistent and occasionally folds on the fire selector switch when the gun is in semi-automatic. This was easily fixed with cutting the finger plate of the lever slightly so the stock would not get damaged. The issue was maybe half an inch of metal but at the cut portion, rust has already appeared. The pistol grip is a VERY specific design and most pistol grips for AKs do NOT work on this gun. I attempted to swap out the grip for a JG grooved finger grip but there was no chance of it fitting. Same with a SAW pattern grip in store, even after professional adjustments to the grip itself. Due to the receiver's design, loading a magazine into the gun is more difficult than with Marui style gun. The magazine well isn't as forgiving and does take more practice to become proficient. I've noticed there is a pin holding the receiver and the barrel assembly together that moves its way out. A punch or hammer tapped screwdriver will push it right back into place.
But in game, the Cyma was outperforming most other guns on the field in terms of range and power. Accuracy and grouping left something to be desired but the barrel is still stock so that is to be expected. Due to the gun firing exactly 397 and field limits at 400, I was advised against a tighter barrel or risk having to downgrade the spring. I currently use .25 BBs but am going to start testing with heavier because the hopup is maybe on a quarter, if that, to maximize range and consistency and I am confident the gun can handle heavier.
Even with the quality problems of the pot metal and the annoyingly specific parts here or there on the gun, I would fully recommend this gun to any mid-level player looking to step up to a modernized AK platform and willing to put some TLC into it and fix some manufacturing defects.
Major pro over all other AK platforms: Folding the stock does not get in the way of adding a claw mount over the receiver cover for additional optics
Simple to fold stock
Power just shy of local field limits (397fps w/ .20)
Adequate rail space for optics, foregrip, light/laser and bipod
Stock does not get in the way of full face masks
Unique sounding blowback system
Pot metal gas and sight block
Flimsy sling attachment point at base of stock
Slight manufacturing defect in folding stock and fire selection lever lining up
Unique pistol grip attachment point
Cleaning rod not secure
Loading requires proficiency with the AK platform (only a con to the inexperienced)
Receiver body pin jiggles out from use
Rating: [4 of 5 Stars!]