Tokyo Marui – M4 S-System

{simplegrade:5}
Manufacturer: Tokyo Marui (Japan)
Type: AEG
Date Acquired: 12/2004

Just a quick posting on this for now. 10am on 12/15/04 and UPS brings me this:


These are the kind of UPS deliveries I like.

I didn't even have enough time to pull all the temporary putty off yet, but i wanted to post this and assure anyone who ordered from Den that you should all get yours soon if not already Wink


Even better when you open the box. Note, I haven't had time to take off all the temp putty

UPS delivered this to me at work and sadly I'm too busy to play with it right now. But i'll have everything cleaned up and more information after I get outta here… My boss is an ass Smile


Even Marui is putting Blackwater hats in the M4-S pics .

So far I can confirm the following:

  • Tabs are metal reinforced on the body.
  • 1 piece aluminum outer barrel.
  • S.I.R. will ONLY take an 8.4 Mini Battery. The battery well is an area bored out of the outer barrel.
  • Flip up rear sight is spring loaded like the real Knight's version.
  • Flip up front sight.
  • LE style rear stock.

Evening of 12/15/04

OK had some time to review the M4 S-System tonight. This will be an ongoing thing as long as questions keep coming in.


The S.I.R. is plastic and metal.

The S.I.R. is a bit different then the all metal S.I.R.'s that have been available. Above I marked the rails which are the only things on the S.I.R. that are metal. The Rest of the S.I.R. is plastic.

The beefier 1 piece outer barrel makes up for the lack of an all metal S.I.R. We're talking zero barrel wobble!!!

The front and rear folding sights are metal!!! The rear site is spring loaded and function like the real ARMS read S.I.R. sight.


Battery Physical Size Capacity. Note the underside of barrel has a notch cut out about 4" long

To accomodate a battery in the foregrip, TM had to mill/cut a section of the outer barrel. TM made this cut EXACTLY the length of an 8.4 mini battery. The only way I can forsee using a 9.6 mini battery is cut/dremel away more of the outer barrel to accomodate the added length. Other then that the only other things are the more tradtional: ready mag, crane stock, peq external battery. We'll have to wait and see if the airsoft accessorie market comes up with a more elegant alternative.

The final few external add-ons to this system for now:

Not sure what to do about internal upgrading for now due to the battery size limitation. I don't feel like doing any of the external battery tricks yet, but I do have a Laylax Sling on order, so that may solve the battery problem.


G&G SOPMOD Stock and G&P "Rebar Cutter" Flash Hider Installed


Always Wanted an SD Type. Added: EOTech 551.A65, Laylax SD Outer Barrel, KM Silencer


Latest Revision – Magpul M93R Stock, Magpul MIAD Grip, Noveske KX-3

Tokyo Marui M4 S-System Chrono Results (FPS)
.20 BB's
Min: 270.80
Max: 286.79
Avg: 283.22