here is review from website:
Review:
Initial Look & Feel:
Solid, durable and realistic. Everything you'd expect for great value. Matte black finish. 1:1 scale to a real steel M4 Carbine. Nice logo. Expect more and spoil yourself today.
Performance:
Air Seal: The Matrix M4 shoots an average of 30~50 FPS higher than most other brands with the same spring installed. Which means it has superb air seal and energy efficient. Less work on the Motor and Gear only means a more durable AEG.
Accuracy: With 6.04mm tight bore barrel already installed, it is also much more accurate than any other M4 AEG under $120.
Reliability: This AEG is completed with all Matrix parts, resulting the best factory direct value per dollar in the market. The very popular complete gearbox from Matrix is retailed for $110, and it is rated one of the best gearbox by skilled technicians. The firing is smooth and the rate of fire is great with good accuracy and range.
Stress Test:
Upon receiving the first batch, our technician fired 10,000 rounds (35 m4 hicap / 11.1V 1350mah Lipoly battery) on randomly selected five Matrix Tactical Systems M4 and the result was amazing. Each gun test was completed within 1 hour to really "stress test" these AEG. After the first 5000 round within the hour, the motor starts to get warm, and gets pretty hot by the 35th hi-cap. One anti-reversal latch broke during the stress test. To those that the above statements makes any sense to, this AEG is more durable and stable than most we have seen. It is more "Lipoly Ready" than any AEG out there, however, we still recommend only experienced gamers to use li-poly, as the gaming advantage comes with responsibilities.
