Expertice needed! (Spr build)

[dasshiz]

First off I would like to say thank you for your help ahead of time and I really appreciate any and all input on this build.
I just had a few questions concerning a high fps build, and would really like some input.
My goal is to have a 450-500 fps Semi Auto with instant trigger responce
and the ability to take accurate long distance shots.
The base gun is a dboy Spr Mk12 Mod 0
here is what I plan on doing
Prommy 6.03 520mm or 590mm (I heard anything after 500mm really doesnt make much of a diffence)
High torque gear set of some sort (need advice)
High torque Motor (need advice)
Deans
new metal hopup (need advice)
thinking about Prommy Neo strike chamber
New nub (need advice)
Magic box bucking or fire fly hard
Magic box Air nozzle
Magic box Cylinder head
Magic box Cylinder
Magic box piston
Magic box piston head
Magic box spring guide
Magic box bushings
What kind of wireing would you guys reccomend to rewire the gearbox/gun?
What battery would you reccomend? (never owned a lipo/kind of prefer the simplicity of nimh/nicad)
What else would you reccomend for trigger responce?
How much would I benefit from installing a Mosfet?
and last but not least What bb's would you reccomend? I would like to stay away from madbull

Thankyou

[sigma85051]

I am working on the same but I have a sr25 (m110) pm me if u want some tips on what I have done and we can share some info

[dasshiz]

feel free to discuss it in here 

[Green Listerine]

Anything over 455mm barrel isn't necessary.
XYT, GE, or JG 18:1's will be fine. If you want trigger response, high torque gears aren't wanted.
Any neo torque motor will work. Lonex A1 is recommended.
Hop up chamber doesn't matter, stock one with tuning is fine.
Get ER hop with EM nub.. This is a DMR after all.
Ditch all the magic box parts.
For wires, I recommend 16awg FEP of PTFE.
I make and install MOSFETs if you are interested. Rated for 14.8v lipo batteries. MOSFETs are a must for DMR's.
For bb's, king arms .36's are pretty good.

[dasshiz]

Thanks for your input, how much would a mosfet cost? And as for compression parts what would you reccomend? I would like my rifle to be as consistant as possible.

[Green Listerine]

$20, with 16 and 22 awg FEP wiring. For compression parts, I've had best results with Lonex.

[dasshiz]

And why did you say scrap the magic box parts?

[Green Listerine]

Overpriced for what they are. Also, some of the parts aren't necessary. Get the internals from either clandestine or locally from Spazz, who carries SHS and CORE parts.

[nukeduster]

Why are you wasting all this money on a crap chinese gun?

Even if you make it shoot well, its resell value is close to zero because of the brand name of the externals.

[ThatGuy]

Why are you wasting all this money on a crap chinese gun?

Even if you make it shoot well, its resell value is close to zero because of the brand name of the externals.

Because he can. His gun his money .....

[dasshiz]

I appreciate all the input Green Listerine you're awsome! After researching the R-hop/Er-hop I am now very interested in trying one out.
Have you personaly used one?
I am Kind of Iffy about the stock compression parts on this gun the Nozzle looks like cheap quality clear plasic, and the nozzle head looks alright. I plan on perfecting oring fitment after everything arrives.
Another goal of mine I forgot to list above is making this Gun as quiet as possible, Mostly that is tinkering though.
The stock piston looks pretty nice actually, But I am some what thinking of trying out a Silent Piston head for my set up, I heard the Angel customs one Is actually worth getting.
Are Pom piston heads much quieter than alum?
Would an alluminum Nozzle be Louder than a Pom one?
and How much Louder would you say a Lonex motor/any motor with NEO magnets be than say a TM Eg1000?
so new upgrade list includes the following
New air nozzle (I have had great experiences with Guarder parts in the past)
Metal 7mm bushings (are ball bering quieter than Non?)
New piston head
New cylinder (the stock one is ported/I would like a new smoother one)
ER Hop /M nub (aside from getting it machined I have heard of people just using a small file and chipping away at the cut slowly)

[dasshiz]

.

[Green Listerine]

I have used a r-hop in an m4. I can say it surely improves range; however it really needs to be perfect to get the most out of it.
Correct on the airseal parts, they need to be replaced.
For making a gun quiet the biggest thing is shimming. Sorbo pads help (I am also testing another sound dampening material). Having your inner barrel run halfway through a foam-filled silencer helps. I've heard of people coating their gearbox shell and stuffing their receivers with sound dampening material also.
I would recommend a SHS 15 steel tooth piston. The "silent" piston&head assemblies don't help silence the gun. It's just a marketing scheme.
POM piston heads are a little quieter, helps if you get a POM cylinder head also.
A Lonex A1 motor will likely be quieter than a TM eg1000. They have much more torque; making it easier to pull the spring and less noise.

For the new parts list: the guarder nozzle is good
Stick with solid steel bushings
Get a Lonex POM piston head
New cylinder isn't needed unless you're changing barrel length. Be sure to match air volume with the appropriate cylinder
If you get the ER hop, you need the EM nub to match it.

[dasshiz]

AGAIN thanks so much for the quick reply's and helping!!!
My stock gears should hold up fine for quite some time ( semi only & I intend to shoot around 20 bb's per day of play)
I heard that helical gears are much quieter do you have any input or experience on that?
& what u.s. based retailer would you suggest for a lonex motor?
I plan on running a foam filled suppressor ( I currently have the suppressor and I am gonna mess around with some materials for inserts)
I am going to foam as much of the gun I can and do a few more things I will keep to my self for now
I have used a silent head and I would say it deepens the sound sig a bit
and what cylinder head/ piston head combo would you reccoment, Keep in mind I will be running a relatively high fps set up

[spazz]

what  is your budget and how much time are you willing to spend to get the rusults you are looking for?
is this a build you want done right away or do you have the patience to buid it right?