My colleagues in Ericsson and I bought new guns… The Jing Gong (JG) M4 S-System!

The estimated out-of-the-box FPS is 415-420FPS. When my colleagues did a chrono on their newly bought guns, it registered 418FPS on average while some guns even went up to 480FPS.

I wasn’t able to chrono my own gun since I was in a hurry to leave. But they estimated mine to be roughly around 418FPS as well.

I did some target shooting on the rooftop of my pad and I was really surprised. The sound was similar to high-end AEGs (Automatic Electric Guns).

The trajectory was not impressive at first rounds of bullets. It was scattered with BBs flying all around. However, after several rounds (Approx. 800 bullets) and a few adjustments on the hop-up, the trajectory and target spread became quite impressive. It had around 3-4 inches diameter target spread on a 20~25 meters distance. This was quite normal for new AEGs as the hop-up and the silicone oil was also adjusting.

This gun is so much heavier than my trusty Jing Gong (JG) A47-Beta Spetsnaz (Ak-47). The M4 S-System has metal rail system as part of stock.

I like the M4 S-System for our usual Jungle Scenarios. However, for CQB scenarios, I won’t be able to use the M4 S-System as it might fail the bottom-can test and bore a hole on the can. I will need to use my Spetsnaz. It only dents the bottom of the soda can.

Overall, I’m very satisfied with my new M4 S-System. However, I’ll update this post once I get to use it in combat this Saturday.

Edited: May 29, 2007

My M4 S-System now has a vertical grip, Brons Red Laser and a Bushnell Illuminated Scope. I also upgraded the stock barrel to a more efficient custom tight barrel. I changed the stock battery to a 11.1V Li-poly Battery.

The M4 S-System is very reliable in any situation. Although most people believe it’s not very effective in CQB, it has helped me numerous times during CQB missions. There were several times when I would be the last man standing and I would defend the fort with the M4 S-System. I would pinch enemies here and there until my ammo runs out.

JG has definitely made a very cost-efficient gun.