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Q1
If that part for fill the space is not useful ?
No, it fills the space around Hop Up chamber.. -
Q2
Will it (SMOOTH Modular Gear Set) wok in a VFC M4 ?
Yes, it can be work in VFC M4.. -
Q3
What's the max recommended spring? Can it be used reliably with an M120? Or is a torque-up set recommended ?
It can be used reliably with S120.Suggested Spring Rangers for Modify Modular Gear Set-SMOOTH (The data sheet is based on using the standard motor and 8.4V battery).
For SMOOTH (Speed 16.32:1)
The performance is Good when you choose S100+ , S110+ or S120+
The performance is OK when you choose S90+ , S130+ or S140+
For SMOOTH (Torque 21.6:1)
The performance is Good when you choose S110+, S120+ or 130+
The performance is OK when you choose S100+ or S140+
We have not tested our gear set in a King Arms 7mm Ver.2 Bearing Gearbox.
If it is a renforced Ver.2 gearbox like CA series which reinforced at the back section near the gears.
I'm afraid that you have to use the SMOOTH 7mm Ver.2/Ver.3.
If it is a Ver.2 gearbox like Marui series, both Modular Gear Set 7mm Ver.2/Ver.3, Torque 21.6:1 and the SMOOTH 7mm are ok.
And you do not need the bearings of King Arms, because all of our modular gear set comes with the bushings and bearings.
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Q4
No thread in the hole ?
Question: I just discovered that the hole where I put in screw in, to hold the Cut off lever - there is no thread !It is designed to use SELF TAPPING SCREWS for a better performance. So you just need to fasten the screw into the hole, and thereby make the thread.
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Q5
Improvement
Question: Please pre-radius the gearbox front corners. It will help the gearbox strength and make it less prone to crack.Yes, we did that.
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Q6
Which lower receiver is compatible for ?
Question: What kind of lower receiver is compatible for ?Our Tours Gear Box is compatible for Marui, VFC and CA bodies.
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Q7
What ratios do the smooth come in please ?
The ratio of SMOOTH has two types, one is 16.32:1 for Speed another is 21.6:1 for Torque. The SMOOTH comes with a anti-reversal latch.If you replace ICS anti-reversal latch with a MODIFY one, the spring relax function of the gun (ics) might not be function. However, they're 2 methods to relax the spring:
(1) DO NOT replace ICS anti-reversal latch. Use it with modify SMOOTH gear set.
We do not suggested you to do that. Cause Modify anti-reversal latch would be more compatible with the SMOOTH.
(2) Our anti-reversal latch has a function to relax the spring.
Screw the anti-reversal latch with a screwdriver clockwise about 60 degrees to relax the spring.
When a spring is release sound is output. Attached are the pictures.
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