Magpul PTS ACR Masada Review [discussion]

SgtBob · 12-07-2011 06:17PM

So I had the piston crack on mine the other week.

I picked up a reinforced piston and aluminium head.

I have installed them no bother, but since then, my strange full-auto problem has returned.

With the selector on full auto, you pull the trigger all the way back and get a random burst from 1-3 bbs. Pull the trigger til it is maybe 1mm from being fully back and full-auto.

I reckon it maybe to do with the positioning of the pieces of the trigger system in the gearbox, but I haven't gotten it sorted yet, have had it open a few times fiddling around but to no avail as of yet.

defenderdude · 13-07-2011 12:32AM

SgtBob wrote: »

So I had the piston crack on mine the other week.

I picked up a reinforced piston and aluminium head.

I have installed them no bother, but since then, my strange full-auto problem has returned.

With the selector on full auto, you pull the trigger all the way back and get a random burst from 1-3 bbs. Pull the trigger til it is maybe 1mm from being fully back and full-auto.

I reckon it maybe to do with the positioning of the pieces of the trigger system in the gearbox, but I haven't gotten it sorted yet, have had it open a few times fiddling around but to no avail as of yet.

Sounds like you might just need a new cut off lever.

SgtBob · 13-07-2011 12:34AM

can't see any damage or wear on anything. A little odd. But, I may order some of the parts from the trigger system and replace them.

But, I haven't had much of a chance to do much with it anyway for the last couple of weeks.

Rooky1 · 13-07-2011 12:58AM

Are you sure it isn't just the selector plate not being lined up correctly when going back into the lower receiver?
I know it can be a little finnickity when being put back in.:)

SgtBob · 13-07-2011 01:01AM

I though it was that at first to be honest. Spent ages lining it up as carefully as possible. But even with it placed in correctly, it still happens.

Its a horrible trigger system, same as the ares tar 21.

Rooky1 · 13-07-2011 01:26AM

I know I had to re install mine a couple of times as the selector plate would move a couple of mills!!
If it moved it would fire full when on safe, It would be on safe when I selected semi and fire full on full auto.

SgtBob · 13-07-2011 01:31AM

As soon as I get a chance to have a look again, I'll be trying that and a few other things.

Hopefully someone will bring out a mosfet that will just replace the whole lot in place.

Private Snafu · 13-07-2011 03:09PM

Mosfet for the Masada eh? Have a read of this before you take the plunge!
http://forums.airsoftmechanics.com/index.php?topic=4530.0

13-07-2011 03:15PM

This content has been removed.

SgtBob · 13-07-2011 03:57PM

lperrozzi wrote: »

Mosfet for the Masada eh? Have a read of this before you take the plunge!
http://forums.airsoftmechanics.com/index.php?topic=4530.0

I read all about that. I wouldn't do it unless, as unlikely as it is, someone created a mosfet that completely replace the trigger system, microswitch and all.

Sure one can live in hope.

Private Snafu · 13-07-2011 11:12PM

SgtBob wrote: »

I read all about that. I wouldn't do it unless, as unlikely as it is, someone created a mosfet that completely replace the trigger system, microswitch and all.

Sure one can live in hope.

Theres nothing to stop you wiring up a standard (non-actuve breaking) mosfet, or even the likes of the cheetah 2N and disabling the breaking function

SgtBob · 13-07-2011 11:14PM

I'll certainly take those ideas under advisement.

Spartan Denmark gave me a quote of 10 eur total for all the parts from the trigger system, bar the microswitch.

Will prob swap all that out first, not too confident with swapping for a mosfet yet.

Private Snafu · 13-07-2011 11:26PM

the microswitch can be picked up in maplins, needs slight modification though

SgtBob · 13-07-2011 11:29PM

lperrozzi wrote: »

the microswitch can be picked up in maplins, needs slight modification though

I have seen people talking about buying a different model, but is better as it doesn't impeed ab mosfets and is the exact size and layout.

Then again, in terms of the stock trigger system. The microswitch works. From what I can gather in my interwebs trawling, it is a standard on/off affair, which it does. So I didn't ask spartan for the microswitch.

Rooky1 · 14-07-2011 03:20AM

As regards to mosfets for the Masada.
I tried a trigger master 3 and it does not work at all.
I now have fitted a standard mosfet with active breaking and it works perfectly. (Can't remember the make of mosfet, but will check and put up the name).:)

Leftyflip · 14-07-2011 09:15AM

The stock microswitches require considerably less force than any aftermarket ones to activate, that I've found so far. We tried installing one into a Masada after the original had been melted/burned/cut beyond belief. The small spring in the trigger assembly wasn't strong enough to activate it.

spicymchaggis · 19-07-2011 12:32AM

Overall is this rifle actually worth the money out of the box or does it need a heap of upgrades? The arnies review thread on it is over 100 pages with most people discussing new parts

elDiablo79 · 19-07-2011 02:48AM

no its not worth the money as the internals arent great. but i suppose like everything in airsoft if you like the look of it get it. only thing that really needs upgrading is barrel and hop up rubber and better motor. id recommend madbull barrel and blue rubber and TM eg1000 motor. dats it.

dont go mad like i did with expensive gears motor etc. im in the process of changing everytin in gearbox at moment im going to use original gears and a TM motor. and im taking out my mosfet.:(

Darth Phoenix · 19-07-2011 04:00AM

elDiablo79 wrote: »

no its not worth the money as the internals arent great. but i suppose like everything in airsoft if you like the look of it get it. only thing that really needs upgrading is barrel and hop up rubber and better motor. id recommend madbull barrel and blue rubber and TM eg1000 motor. dats it. dont go mad like i did with expensive gears motor etc. im in the process of changing everytin in gearbox at moment im going to use original gears and a TM motor. and im taking out my mosfet.:(

+1 on that, if you determined to get one, i urge ya to wait and get one secondhand. One or two have popped up for sale here.

For such a expensive gun it has a few kinks too many many for the price of it new but having said that once you have it set perfect its a great aeg.

Their are still issues from what i read on mosfets about the gun espicially AB ones. Though i havent put in a non ab one in mine yet to see if it works well on it..

DP

Blazer · 19-07-2011 10:20AM

+1 as well.
I was tempted to buy a new one but waited...

ended up getting one with tightbore barrel, VFC high speed gears, reinforced piston head, G&P M120 motor etc for around the €450 mark...
nothing wrong with that...it's a beast of a gun

but I still prefer my G&P M4 magpul

SgtBob · 19-07-2011 05:03PM

+1 also.

I love my Masada. But to be honest if it was anything else I wouldn't be happy with the price for the niggles it comes with.

Blazer · 26-07-2011 10:09PM

anyone using 9.6 nunchucks in theirs?

Darth Phoenix · 27-07-2011 04:05AM

Sc@recrow wrote: »

anyone using 9.6 nunchucks in theirs?

Yes mate, i do. They work like a charm on them and they fit without issue.

27-07-2011 05:42PM

This content has been removed.

9C1 · 27-10-2011 07:40PM

Rooky1 wrote: »

As regards to mosfets for the Masada.
I tried a trigger master 3 and it does not work at all.
I now have fitted a standard mosfet with active breaking and it works perfectly. (Can't remember the make of mosfet, but will check and put up the name).:)

Would you mind posting pictures of this? or make a wiring diagram?

I am currently putting a mosfet into a customer's Masada and I need to know EXACTLY where all of the wires go. I am not familiar with the microswitch system and therefor I am not sure where to solder each of the wires. I have not been able to find a guide to do this anywhere

I have 3 wires coming from the mosfet. 1 positive, 1 negative and 1 (small 22 gauge) sensor.

Rooky1 · 28-10-2011 02:17AM

9C1 wrote: »

Would you mind posting pictures of this? or make a wiring diagram?

I am currently putting a mosfet into a customer's Masada and I need to know EXACTLY where all of the wires go. I am not familiar with the microswitch system and therefor I am not sure where to solder each of the wires. I have not been able to find a guide to do this anywhere

I have 3 wires coming from the mosfet. 1 positive, 1 negative and 1 (small 22 gauge) sensor.

Sorry I have since changed the configuration of my Masada.
It turns out when I was using the AB mosfet with the M120 motor, the AB had no effect.
When I changed to a higher torque motor the Masada just simply did not want to work with the AB mosfet.
I have now removed the mosfet altogether. The microswitch in the Masada just simply doesn't work well with the AB Mosfets.

The Masada is running sweet now with high speed gears, Kanzen bearings and a Guarder infinite torque motor.:)

Rooky1 · 28-10-2011 02:23AM

Should have mentioned on the other post.

There are only 2 connections on the microswitch the same as a standard V2 gearbox switch, so the mosfet is fairly straight forward to fit.

I found a couple of wiring diagrams while searching with Google.
Link; http://4.bp.blogspot.com/-fwkLUekvwZw/TZ4ZOsWMblI/AAAAAAAAAKQ/RG-hYRiSYgk/s1600/MOSFET-WiringDiagram.jpg

You will probably be wiring it the same as 2b or 3b in the diagram.

Hope this is of help.:)

elDiablo79 · 28-10-2011 07:27PM

Rooky1 wrote: »

Sorry I have since changed the configuration of my Masada.
It turns out when I was using the AB mosfet with the M120 motor, the AB had no effect.
When I changed to a higher torque motor the Masada just simply did not want to work with the AB mosfet.
I have now removed the mosfet altogether. The microswitch in the Masada just simply doesn't work well with the AB Mosfets.

The Masada is running sweet now with high speed gears, Kanzen bearings and a Guarder infinite torque motor.:)

just wondering wat make of high speed gears are u using?:)

Rooky1 · 28-10-2011 08:09PM

elDiablo79 wrote: »

just wondering wat make of high speed gears are u using?:)

A friend of mine bought them for me as a replacement set.
They are made by X High Tech (13:1 ratio)

Tried them with a high speed motor......not a good match.:rolleyes:
Work very well with a high torque motor.:)

9C1 · 01-11-2011 12:44AM

Rooky1 wrote: »

Should have mentioned on the other post.

There are only 2 connections on the microswitch the same as a standard V2 gearbox switch, so the mosfet is fairly straight forward to fit.

I found a couple of wiring diagrams while searching with Google.
Link; http://4.bp.blogspot.com/-fwkLUekvwZw/TZ4ZOsWMblI/AAAAAAAAAKQ/RG-hYRiSYgk/s1600/MOSFET-WiringDiagram.jpg

You will probably be wiring it the same as 2b or 3b in the diagram.

Hope this is of help.:)

Thanks. The reason your a/b didn't work was because the stock micro switches have problems with what has been dubbed "bouncing", which causes the switch to turn on off many times a second due to the vibration from the gearbox. This causes the MOSFET to start and stop the motor every time the connection breaks which causes rapid heating of the motor and MOSFET. NOT GOOD! Alternate switches made by a different manufacturer don't have the vibration problems and work great, but the only catch is that they are only rated to handle about an amp. Since they are rated so low, they MUST be used with a MOSFET, or else they will just burn out.

I just have never wired a MOSFET into a micro switch system and didnt know if there was anything different about them.

Magpul PTS ACR Masada Review [discussion]

Comments