Update to my MGS4: M4 Custom Project.

OMFG.  Words cannot describe my level of frustration.  Selecting the JG M4 S-System as my base gun was probably the worst possible thing I could have done.

In short, I’m better off building the gun from scratch.

After disassembling the SIR front-end, receiver, and trying to comprehend how I’m ever going to attach the S-System’s proprietary outer-barrel to my D-Boys Metal Receiver - I gave up.  Instead I found someone who had a lightly used CA M15-A2 (I believe) outer barrel.  The model without the notch for the grenade launcher.  Which is probably what I should’ve done to begin with, as the original 3D Render I was working from doesn’t have that notch anyways.  So, all is good in the world. Right.

Back on topic… now that I’ve decided to keep the S-System intact, I needed a new source for some internals.  Luckily for me, a good friend of mine operates the Xtreme-Tactics Online Store.  He was able to hook me up with some parts I needed (i.e. inner-barrel, hop-up rubber & bucking) at a good price.  So now there is a Mad Bull Black Python 363mm tight-bore installed, with a CA hop up rubber and bucking.

The CA hopup rubber seems a little thicker than TM ones I’ve used in the past, but with a little lube (silicon oil, you perverted bastard), it slid on in without a problem.

I still have to make a decision as to where I’m going to put the battery.  Eddie from CRW-Airsoft told me he has his (3-cell Firefox 11.1v 1200mAH LiPo) in the RIS system he used (not the same free-float RAS I’m using), but that the same bettery would fit in the stock buffer tube.  I have this battery and with some slight modification to the lower-receiver it will fit.  So here are my options:

1. Rear-wire to the buffer tube.  Safe, hidden, adds some rear-weight (albeit not much, the LiPo is incredibly light).
2. Front-wire to the RAS.  There is a possibility the battery could be struck by a BB through the holes inthe RAS.  While you would need an incredibly hot gun to damage the battery to the point of catastrophic failure, I’d rather aire on the safe-side.  But this is an option.
3. Front-wire to an AN/PEQ unit.  If I can find one that has a buildt-in laser for cheap - then that’s an added feature I suppose.  But it will add more weight to the front-end of the gun, and PEQ units aren’t to everyone’s tastes.

I’m open to suggestions, or other alternatives if you have any ideas.  Register (don’t worry, you won’t be added to any mailing lists, it’s against the law here), and post in the comments.

So while I have the gun assembled, albeit incomplete, here are a few photos.  I apologize in advance for the shitty camera work, I blame my iPhone.  I’ll get better pics up when my Sony is charged.

Cosmetically; I’m still missing the front-sight.  I opted not to take the one off the S-System to leave the gun intact.

Internally; I need to decide on a wiring scheme (front/back), I’d like to install a Trigger Master to control the LiPo (update coming soon on this review as well), and I need a motor (again, I’m not using the S-System’s).

So, I’ll have another update shortly, as soon as I get a front-sight and motor in.

Until then.