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Silverback MDR-X

7981 Views 136 Replies 10 Participants Last post by  Leo Greer, 
Doctor Jest
Intriguing. Probably over-engineered. I'm pondering how solid it could be as a long-range platform...with an Edgi barrel and Warhead motor.


-CNC aluminium wide bore cylinder/upper gearbox (26mm diameter, +19% compared to a standard AEG), including a spring quick change design.
-CNC aluminium cylinder head, NBR piston damper, stainless steel nozzle.
-CNC aluminium ventilated piston head, FKM o-ring, POM glider ring.
-CNC stainless steel & aluminium spring guide, equipped with a thrust bearing. 3 lugs design ensuring a better axial alignment.
- “Tappet plate-less” construction.
-CNC aluminium piston body, hardened MIM steel 16 teeth rack.
-18:1 torque up gear set, hardened MIM steel.
-ADC 12 aluminium gearbox carter, 10mm ball bearing.
-Designed to operate on 11.1V Li-Po batteries (possibility to operate on 7.4V).
-Electronic Trigger Unit, CPU motor control, gear cycle and fire selector position detection by Hall Effect sensor. 2 mosfets for power, 1 mosfet for active braking.
-Neodymium high-torque motor 19000RPM (11.1V), short axis.
-Silver-plated wiring, Teflon coated.

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Pretzel
Reading the manual, they sure made some interesting decisions with the battery storage - I'm not sure what ones you can actually fit in there...
16x16x190mm for square, 17.5x190mm for round batteries.

So Titan is right out, those are 18.6-19.5mm round. (and the 3s is 197mm long)

A Tenergy 1200mAh 3s is 15.5x20.5, so that wont fit.

The only battery I have that fits according to the manual is a Tenergy 2s 1200mAh, which is 15.6x13.5... but they specifically want you using 11.1s and you need to watch additional instructions to convert it to 7.4...
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Pretzel
Leo Greer said:
Personally, I doubt Titan batteries will even cycle that thing if it really does 2.48J. A while back I got to take a look at some test results for the actual discharge capabilities Titans have, and the answers are astounding. As I remember, the tested batteries didn’t exceed 5C. 15C is the average requirements for a regular stock AEG. This thing might need a bit more.

Here’s that link: Objective Battery Test
Click to expand...
The 6000mah 7.4v titan I have is appreciably snappier than the 1200mah 25-50c 7.4 tenergy (closer to the 11.1 tenergy of the same size I have), Titan did put different cells in since that test. I didn't even want the 11.1s on my or my partners guns as they would be too fast.

The 3,000 7.4 was a bit sluggish on her gun (13:1s, ZCI high tourqe neo, 1.5j ish with 25s), but unfortunately a 3,000 11.1 stick is the only Titan battery that would possibly work in the MDR. Perhaps with a brushless motor it would work... Won't know until someone tries it though!
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Pretzel
I would be surprised if the gears weren't standard - hopefully they are!

Leo Greer said:
Is there any possibility you’d be able to share a video of your different batteries performing on yours and your partner’s guns? I know that’s a hard ask, but I’d be fascinated to see the differences in trigger response myself.
Click to expand...
Mine's not finished yet (waiting on some components) but I can top off the batteries and show a fresh charge of the 4 on hers no issues. May get to it today, may not be until Monday.
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Pretzel
Apparently it's been confirmed to not take the real handguards for some reason, which pretty much blows my interest out of the water; the stock handguard is trash tier aesthetics and makes it look like a scifi gun from a no budget B movie.
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Pretzel
So these are in stock at Amped Airsoft for the US folks by the way, black and 2 tone, tan is sold out. $600.

Partner forbade me from buying one till we get out and play more... Fair play as I haven't even built my m4 aeg yet! (Or finished hers...)
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Pretzel
Sounds like the stock hop is... Not great. The nub angles when you turn up the hop giving you hooks, so you need to go over 1 tick, then back down.

Assuming a MAXX or similar hop will be out before too long with support for barrels that have normal C clip locations and a TDC nub that doesn't wobble (I assume it can be fixed with shims, but it's a bad initial look).

And the working motor is the warhead basic, not the fancier ones. The basic has a much simpler controller from what people have said, which can handle the active break. Also the T238s or whatever that brushes motor is called is apparently compatible?
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Pretzel
It certainly took them a while to get the SRS to something... that people actually liked. hopefully gen 2 of the MDR will be the same.
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Pretzel
It would be nice if there was a jumper or dip switch to disable active breaking as well for gen 2 for people who wanted to use brushless motors
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