Tacitus

Why is everyone insisting on using torque motors in such low power guns?

High torque but overpriced. Seriously, the SHS/Element high speed motor is great and has plenty of torque for an M120 spring.

No need for a torque motor to pull that spring. An SHS high speed motor will easily pull it, and much faster.

Whaaaat?? That's crazy talk. As a tech he should have a stockpile of different pistons for testing. I have an SHS full metal tooth piston in mine. I had to file down the teeth very slightly to prevent them rubbing the top of the sector gear on the forward stroke.

I didn't manage to get that link working :/ Which specific Kanzen bearings didn't fit? Any were they too large for the bushing hole, or were they too thick for the gears? I haven't had a chance to try out those Modify gears, but I've heard some bad stories about them. I always use Siegetek gears since they're known to be extremely reliable. Please let me know what happens with your stock bushings. I might actually install mine, since I'm not happy with the noise coming from my gearbox! Those DC3 connectors look very similar to the XT60. I might actually be the exact same bullet

Yes, further back in this thread many people have reported the exact same problem.

When I upgrade guns for people, I always insist on choosing the parts myself. But even then there can be compatibility issues, as manufacturing tolerances can be very loose. Try to customise a Masada and there's a whole host of extra problems thrown into the mix. I've heavily modified mine just to get standard parts to fit, but I'm nowhere near finished with it.

That all sounds entirely plausible to me. 6 weeks isn't so long to be working on a gun, especially a proprietary one with so many unique problems. May I ask who your tech is? And who selected the parts?

I didn't do a before and after test with this nozzle so I can't say for sure, but it feeds perfectly and provides an excellent seal around the cylinder head nozzle, so I'm confident that compression will be more consistent. I haven't seen a Wiitech nozzle yet so I can't say how the two compare. What spring are you going to be using in you Masada?

There's a full parts list in the comments section of my blog post. What work are you having done to yours?

Thanks Eric! I've replaced almost all the internal parts. Extreme-Fire SW-AB-Long MOSFET custom made without AB (yeah, weird I know ). I've replaced the fuse with one I made, and I've added a tracer unit control circuit of my own design, which enables any battery to be used with the internal tracer unit. New wiring, using this 16 AWG stuff. It's nice and thin, but the insulation is tough and heat resistant. XT-60 connectors - Loving them at the moment. SHS High Speed motor - Excellent performance. Modify 8mm ceramic bearings Siegetek GS-R Revolution high speed gears. Siegetek gears a

Ah, that's very interesting! What's your setup? I'd be interested to know how well the original bushings survive in an upgraded gun, especially with Siegetek gears. I assume you're using the MAG stainless steel shims? They're my favourite ones, I'm waiting for a large quantity to arrive at the moment.

I'm sorry to double post, but this should be a useful addition to the thread: I just made my review into a blog post, so it'll be easier for people to find (currently it's hidden somewhere in this ridiculously huge thread). I'm upgrading my Masada at the moment and I'll be updating the blog as I go, so people can keep track of it there instead of sifting through almost 100 pages here.

I've been tinkering with my Masada again recently. Seeing as my review is hidden somehere within the gargantuan almost-100 page Magpul PTS Masada ACR review thread, I thought I'd make an article here for people to bookmark and easily keep track of any updates I add. I'll put updates at the bottom, so if you've read it before you won't have to skim through to find new information: Review Received my UK-spec Masada last week, with 1 free Pmag kindly thrown in from Dingodogs. I'm extremely impressed with the material and build quality. The polymer is gorgeous stuff, seemingly better

Building an internal tracer unit into the Masada is absolutely doable. There are a couple of extra steps involved, but it's not a problem if you have a few roll pin punches and a dremel.

I have some calipers arriving this week, hopefully today, so I'll measure a few pistons for comparison. Can you be more specific about how piston length was a problem? Too long and unable to fully cycle?

If a piston isn't compatible, it's usually because the piston teeth are slightly too close to the sector gear, causing excess friction. It's caused by the sector gear bushing hole being too close to the piston guide rails on the mechbox itself. This can be overcome by sanding/grinding down the piston guide rails on either the piston or the gearbox, piston preferably. This is common to many gearbox shells. It's better to modify a decent piston than choose an inferior one just because it fits the Masada gearbox with no modification. So I'd say go with your first choice of piston and sand down th

A friend of mine just last week had a faulty G36C returned to him from the techs at Wolf Armouries. They did not fix his gun, and reported that the feeding tube was cracked and couldn't be repaired. I openend it up and found no such breakage. There was evidence suggesting that the gearbox was never opened ie. factory locking glue still holding the gearbox screws in, brand-new looking screws heads etc. If I can fix it, any airsoft tech should be able to. Espescially one attached to a retailer. I've had conversations with the techs at Wold Armouries in the past and I distinctly remember the

Let us know if you manage to buy directly from Redwolf UK. I thought they only sold to retailers but if not they could be a great source. Wolf Armouries is really nothing special, and the gunsmiths there don't know much at all. But it's the only airsoft shop in London so you might as well check it out. Glad you've invested in Siegetek gears. They're probably the best single product I've purchased for airsoft. Of the proprietary parts in the Masada, only the air nozzle and hopup nub cannot currently be easily upgraded. I've read about a method used to install an o-ring into an air nozzl

I don't have any, but I can take some. It's not very pretty in there but it all works. Is there anything specific you'd like to see? I don't have the space to do proper accuracy tests, so I don't know if the hopup even needs upgrading. The nub is intergrated into the hopup unit, which I haven't opened up yet as I still need to buy a 4mm roll pin punch, so I can't say how easy it would be to replace with a regular nub. I only know this because I took the microswitch apart to see how it worked! I'm one of those people who has to take everything apart I'd still be wary of a gun

It's unfortunate that your Tavor microswitch caused such problems, but it's very useful for Masada owners to know about! The microswitch is actually mechanical, and not electronic. If your gunsmith can modify the switch with thicker metal, it will decrease resistance thereby increasing the current it can handle. It does seem like an unnecessary modification however, considering that a MOSFET would bypass the microswitch completely while providing other benefits. I'd be suspicious of a gunsmith who felt he didn't have the skill to install a MOSFET in the Masada. While it's more complicated than

What problem have you encountered with your Tavor? The cylinder head is unfortunately also proprietary, which I forgot to mention in my review. This is due to the length of the cylinder head nozzle. Luckily it's not a part which needs upgrading, as a perfect airseal can be acheived by wrapping some PTFE (Teflon) sealing tape around the cylinder head. The Systema silent piston head is a bad choice, so I would discourage you from buying it if you haven't done so already. It is not supposed to be used with normal cylinder heads due to the shape. It's too heavy (heavy piston assemblies are

I don't know why the barrel has been described as 14.5in, maybe to mimic the RS version? As for the actual inner barrel length, you appear to have answered your own question. However, I don't think there are any precision barrels available at that exact length, so you will have to buy a shorter barrel. The closest I can find is an M4A1 barrel at 363mm long. You will still see an improvement despite the shorter length (assuming that the stock barrel can be improved upon, which is probable considering the quality of the rest of the internals). In airsoft, barrel length doesn't affect accura

That's very interesting. I think mine has a similar problem, but related to the fire-selector: When the fire-selector is set to semi (12 o'clock), the trigger must be pulled all the way back (and squeezed quite hard) to activate the microswitch. Setting the fire-selector a few degrees to the left of semi-auto (about 11.5 o'clock) is needed for normal trigger operation. It's annoying, but I haven't looked into fixing it yet as it's easy to work around. It's a shame that the whole trigger/fire selector/semi auto cutoff mechanism has been so poorly designed.

Can you take some photos to demonstrate what's going on there?