I have recently brought and fitted into my custom M4 an Action Sports Games - Ultimate Upgrade series V2 Gearbox, and I must say am pretty damned pleased with it!
I purchased it from www.landwarriorairsoft.co.uk for £135.00 plus p&p. The package turned up the next day and immediately after getting home from work ripped it out of the box as you do with all new airsoft gear you buy!.
The specs of the gear box are :
A full gearbox, fully upgraded
Front wired complete gearbox:
M110 Spring
8mm Steel Bearings
Bearing Spring Guide
Aluminium Cylinder Head
Polycarbonate piston
Enhanced tappet plate
High performance gears (up to 35% less wear)
High grade low resistance wire, increases rate of fire and FPS
And I must say I thought that was impressive (which is why I got it). Upon first look opening the box I was faced with a very shinny gearbox that looked very well made. No molding seams or weird little lumps and bumps you find on some Chinese cases. It looked and felt solid as a rock and with the care that had gone into the outside with the laser engraved logo and precisely drilled holes I was eager to take a look inside.
The case is held together with 8 torx head screws as you would usually find on the better quality gear boxes.
Upon opening the case the amount of grease on the gears reminded me of the three little bears, not to much not to little but just the right amount, where it should be and no where else. The rest of the gear box was well put together with steel toothed poly piston, ball bearing piston head, and a nice heat sinked cylinder with a blue aluminium cylinder head. The parts were all nice and tight in there seatings with no wiggle space. I was mostly impressed with the 8mm bearings that spun so freely you barely had to flick the gears and they would spin forever and a day. the shimming was also spot on leaving just the tiny bit of movement on the axles you should have.
Onto the electrics. All of the wires are silver with silicon flex cover and silver contacts. Even the trigger contacts were silvered which gives better conductivity. The selector plate moved solidly but freely, but lacked the silver contact on it as it was copper, but all in all was of excellent quality.
Installing the gearbox.
I wanted to put the gearbox in my old HK416 and although it seated nicely and everything went together fine upon shooting it found it would only fire in semi auto even though the selector was on full. I immediately thought NOOOOO! its a dud. But low and behold I found after much tinkering it was that the selector bevel inside the case would not push the selector plate back far enough. So to the trusty TM receiver we go and guess what? not a problem. The gearbox had a nice crisp sound and a slight kick to it as well which gives you that solid firing feeling. It was fairly quiet as well which is good when you are sitting in a bush trying to be sneaky sneaky!
I was using the gearbox in conjunction with a systema one piece hop and a ASG Ultimate 6.03 barrel. It shots sweet as a nut and with the 7.4 lipo I was using at my last game the ROF can easily keep up with my team mates M249's ROF.
The gearbox is yet to let me down (touch wood) and overall haven't got a bad thing to say about other than if you plan on using it in a budget Chinese made receiver be careful as compatibility could be an issue. Finally I would have liked to see the selector plate have a silver contact as everything else was. Price wise I believe it is fairly priced for the level of quality you get as it is comparable to the leading gearboxes out there but have given it 4 for price as there are gearboxes out there a lot cheaper.
Overall scores
Build Quality : ***** 4/5 (the copper on the selector plate let this one down)
Performance : ***** 5/5
Price: **** 4/5
In conclusion this is a amazing gearbox and worth seriously considering if you are planning on replacing your existing one or even just upgrading your as it is pre-upgraded ready to rock!
FPS wise it shoots just under 350 fps with an average over 10 shots of 342 fps. But this will vary from gun to gun dependent on hop, battery etc...
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