No feeding troubles with the new mags then?
not tested yet as my gun is in parts atm, will be looking at it on my next day off. (Friday)
Ok fingers crossed then
Interesting little find and something to think about...
http://www.sofmilitary.co.uk/ProductDet ... x?id=12733
Well an intresting day of building. With yet some more obstacles in the way but all crossed, and happy to say that my BAR is fully working! 
So where to begin.....
The 8mm Classic Army Bearings i brought, (pic below) take up more room inside the gearbox than the China ones. Thats why i wanted to get a thinner gear set to replace the ones which came with the BAR as standard. I was lucky I had a few spare sets around and Marui standard gears came up thinner. So this is why I brought Steel Guarder direct replacment gears for Marui guns. (you still with me right?) HOWEVER these did not fit straight away with the Classic Army bearings. As the Guarder gears are blackened we had to remove material around the spindles of the gears to get them to fit. But once that was done they were the best fitting gears you could possibly want in an airsoft gun! (pic of gears below) Another hurdle crossed.
Now for the prowin hop unit upgrade! The hop unit uses a modified AK hop unit. So we have to carry out the same modification to the pro win version. How the hop unit looks from the shelf below.
Now the part we need to modify is around the hole on the top right of the gearbox. As this unfortunatly doesn't quite align with the fron of the gearbox. So picture below is what it look liked at start.
http://s8.postimage.org/x10ltpbk4/image.jpg
After starting off using a dremel (too slow) moved to hacksaw to cut through. The hop is made of aluminium so it cuts real good. 
http://s15.postimage.org/m2tnrzz56/DSCF0471.jpg
After the hole is removed time to whip out the dremel again which ended it looking like this.
http://s9.postimage.org/nrk8ifmce/DSCF0476.jpg
Then how it looks once in its final position.
http://s7.postimage.org/jle1nc9mi/ewnd.jpg
Some other points from the todays build. The tappet plate is not a great design. As the tappet plate's spring will rup straight on the cylinder! Something to be aware of for sure. How ever turning the cylinder slightly after every few thousand rounds will mean your spring wont be sawing its way through the cylinder. Makes an odd noise too as it rubs against the Systema ribbed type cylinder.
Nothing in the gun is "sprung", which means instead everything is very tight fitting. Not a bad point but just worth mentioning.
The new mags fitted and worked well, although a little snug, they will probably just need wearing in. Also the mags can be wound with an alan key which reduces the winding time. The original ones didn't work with the key provided.
So with all the upgrades done and the gun back together how did it fire? Well it was very dark and not alot of time to test but with the hop totally on 300 FPS with the hop totally off 360 FPS. This was with a Madbull M100 spring. The most I have got from one of these before is around 330 in a high end gun. Which lets me believe that the pro win hop unit gives around 30 FPS by itself. To get a similiar FPS in my thompson (350) I had to use a M110 spring.
Any questions fire away! I will be at the gothic line if anyone wants a feel or a play with it. (the BAR obviously! )
Stu
They are Version two gears, and will post pictures of a mag difference when I get a chance.
Sorry have been slacking very much so! Still thinking about all the germans I killed at Josh's last event! 
As a recap I have installed the following upgrades.
1 X Systema New Boreup Cylinder Set for M16A1 / VN
1 X Madbull Ultimate 6.01mm Tight Bore Barrel 7075 Aluminium (650mm)
1 X Systema Energy POLYCARBONATE PISTON (Black)
1 X Systema Energy Spring Guide with bearing for v2 gearbox
1 X Pro-Win AK Hop-Up Chamber
1 X Madbull M100 Spring
With this current setup I was getting 350 FPS which is the most I have ever got with just a madbull m100 spring. The prowin hop unit must easily add 20-30 FPS! And it is bloody accurate. The joint attack with the jeep and armoured car against the defended german position I was managing to hit people consitanly through a very tight gap in the fortifications which lead to the death of lots of germans who thought they were safe!
With the guarder gears I brought I was unable to get the timing right on the gearbox and this was causing it not to feed. So had to wip them out for the last Gunman event and use the stock gears (and bearings).
Next to order is a sector clip to hopefully fix this problem pictured below (link http://www.fire-support.co.uk/product/kingarms-gear-sector-clip)
I will let you know how i get on with this next fix soon.
Just a picture of lil old me and Josh's last game. Makes a change I am still alive at this point! 
The gears will be a tight fit thats all I know as Prometheus gears are generally the biggest bad ass gears around! Do you have a pair not in a gun? I only have version 7 prometheus gears kicking around. I could do a measurement and let you know if they fit!
The gearbox with the guarder gears work flawlessly with them in.... however... the tappet plate did not like the gearset and was either released a fraction too early or too late. This caused the gun to missfeeed. This is why I will be buying a sector clip and reinstalling them soon.
Stu
I have had the classic army bushings fit and had them nicely shimmed with the guarder gears but there is NO WAY you will fit prometheus gears and the Classic army bearings though in there. Thats why i went with the guarder ones as they are thin (and cheap!)
The tappet plate is not v2 or v6 its a modified one and have not found one which fits yet. Won't worry about it yet until it breaks.
Stu
The ROF when checked with the Upgrades was 10-11 rds per second with a 8.4 nimh Battery and the standard china motor.
Although that does sound a bit low so wouldn't mind getting it through a chrono again to see how it compares. How ever if it is a correct reading its shooting at about the same ROF as the real steel.
And as a side note i am not bothered about it shooting quick. I rather have the ROF slower so will order a 7.2 Volt battery soon at some point
Stu
Great job!
Although I had many oppotunities at the Gothic Line I did not try the VFC BAR mags although I could see no reason why they would not fit as I did inspect them on close detail.
This is also to note there are actually 2 different types of VFC Mags one have a slight curve on top of the mag while others are just straight. Both types should work though. The ones from Airsoft World aren't exact clones as they have a tool and a "port" which you can wind the mag with. With the VFC ones you have the standard wheel on the bottom which takes ages to wind!
Stu
All it is is an Allen Key just find another which fits
@ stu,
How did your BAR perform with the internal upgrades you installed? You get that sector clip installed yet? Is it true that the BAR will take any v6 p90 gearbox?
Mate it shot so well I was over the moon. At 350 FPS and the long barrel I was killing germans from miles away! The prowin hop I think helped alot too. And that was with a very weak spring. In the states I don't know what sites allow out there but you could easily get in to about 400 FPS with a M110 spring. Which menas you will have high FPS but a very low stress gearbox. I havent got around to ordering a sector clip yet, need to do some research if a steel one or Plastic one is the way forward.
It will not fit a P90 Gearbox, not without serious modification.
Thats great to hear! I guess ill be gutting my custom m4 and stealing the compression parts and installing them into my BAR next week after college finals. Seeing that the BAR will become my new primary, im excited to hear it performs over the moon with upgrades!The one upgrade im curious about is whether the air nozzle is v2 or v3 since it uses an ak style hop up unit?
going back to page 1 i said it was version 2 . I might clean all my posts up to fit on my original post.
The one you have linked looks like it would fit straight on. Dont know what the increase of FPS / Realability of the Echo One is as its just a rebranded China one.
The barrel, I think I have chucked as it was no use to anyone. Do you still require a pic of the hop?
Stu
If your in America loads of people on Ebay will ship Wood work too you. Soldier of fortune does have the real wood and bakerlite stock and will buy and fit after christmas!
Has anyone had any luck with fixing up some midcaps for this beauty yet?
I've been looking at this gun ever since this thread was started and I'm extremely tempted to get one, but the thing that puts me off
is the hicaps (can't stand the rattling and they're pretty much not allowed on many sites here in Sweden, unless it's a "true" box-mag á la m249/m60).
Cheers!
At a guess any small mag can be made to fit, i was thinking Vietnam Style M4 Mags.
But it would mean chopping up 2 mags to get 1 hopefully working.
These would be my first port of call if i did do that.
http://www.airsoftsupplydrop.co.uk/store/index.php/king-arms-m16vn-85-rounds-magazines-box-set.html
Stu
Well, of course! Seems very logical now that you mention it. 
Lucky for me I'm currently building a US Vietnam kit, so I'll have a bunch of those 20 rounders to experiment with!
Let me know how you get on!
Have so many projects on the gun atm this is way down my list
Stu
I'll make sure to keep you guys posted as soon as I get the gun and start working on the mags!
