DE M50 Upgrades . . Road to 500FPS (and up?)

[snyper]

I want to share some upgrades that I have done with my DE M50. I want to present this in levels and stages. So that if you are in a tight budget than you can do the upgrades in stages.

LEVEL 1: Level 1 upgrades is to optimize the performance of your gun with out changing anything from stock parts. Cost is very minimal and mostly labor cost.

To start with most M50 I have encountered whether A(pin type) or P(punched/stamped) the stock FPS is somewhere around 320-330FPS.

STAGE 1: TEFLON FIX: place in the hop and barrel to reduce airleaks. Resulting FPS will vary depeding on the unit, it will range from 370-410 FPS or more. Depeding on the individual unit.

COST: you can DIY and just buy teflon from the hardware store at around P6-P10

STAGE 2: CYLINDER MOD: This process mainly modifies the cylinder so the spring, piston and rubber cap can be accessed. This requires the use of machine shop tools. The compression will be checked at this stage and corrected if needed, this mod will allow you to increase FPS by about 20-30 FPS and will make it more consistent. If there are leaks on the front of the cylinder then o-ring will be replaced.
COST:P250 machine shop labor for modifying cylinder with small bolts.

LEVEL 2: This upgrade will involve replacing parts from to the gun give it additional FPS and to make it more durable and to witstand the additional stress.

STAGE 3A:BASIC SPRING UPGRADE: Replace stock spring with longer custom made spring.
COST:P250
Resulting FPS: 430-450FPS.

STAGE 3B:TIGHT BARREL UPGRADE: Replace stock barrel with your choice of custom lenght and tightness. Mostly ordered from Manila
COST: P1800 - up
FPS gain: for confirmation, since a tight barrel does not guarantee additional FPS but will defintely improve shot groupings

STAGE 4:DURABILITY UPGRADES: Replace critical parts to allow the gun to handle more stress from harder springs and constant bolt cylcing and firing. This will not add FPS to your existing set-up but will definitely make it more durable. Parts to be replaced/custom made:


1. Metal Spring guide P350
2. Spring guide stopper P350
3. Trigger sear P850
4. Bolt handle P850


LEVEL 3: This upgrade will replace the cylinder to provide more FPS. You may opt to buy the commercially available upgrade set from EDGI or if you are in a tight budget replace only the neccessary parts.

STAGE 5A: Replace essential parts on the cylinder to make it more durable to handle stiffer springs. Resulting

1. Spring replacement - P200
2. Piston modification(o-ring type and air brake) - P
3. Cylinder replacement - P

STAGE 5B: Replace the whole cylinder with EDGI's cylinder upgrade. Documented to be more than 500+ FPS
Here's the link about it: acmgames.proboards66.com/index.cgi?board=springertech&action=display&thread=1153370870

Cost is about 3.8K which includes Spring, Metal spring guide, cylinder assembly. Thing is, it is very hard to cycle the bolt using this upgrade. If you plan to use this upgrade you can do away with item #1 in stage 4. But you will have to order yourself from Manila.

So far that's the upgrades available for the M50. Still finishing my setup for stage 5A, so we could all get that 500 FPS without spending so much.

[SANDMAN]

Waiting....

[denski]

Waiting as well... I'm curious if this can widstand 500fps with custom work *wink ...and how cost effective it will be... then the ultimate test... precision.

[snyper]

we'll sir, yung sa aking experiment (R&D) medyo na pause muna. nag iba ng work eh. banat muna. But if you will ask me, Yes it can go upto 600 FPS, by replacing the cylinder/bolt assy. the cost is 3.6K. I would like to achieve that with less cost. Then work on precision.

When I look at the VSR disassembly pic halo pareho, pati mga trigger assembly, Gusto ko nga makita yung APS 2 eh kasi kopya pala sya. hehehe.

[topaciomamaril]

mga sirs, asa man dapit ang machine shop nga mag modify sa cylinder sa M50? ingon si buddyboy of kokomimi sa obrero daw. pa-modify unta nako ang cylinder.

[snyper]

dili na sya machine shop ser, blay lang tapos level1, stage 2 mods ang pede himuon did2.

[SANDMAN]

Sir Snyper... update naman... masakit na puson ko - bitin na bitin...

Pag nakuha mo na ang safe, reliable, and precision performance @ 450fps and above- pagawa ko ng isa sayo...

[snyper]

Na pause mode kay nabusy sa work, tapos na kapos sa funds pang R&D ser, pero I had the chance to field test the stock cylinder, with the level 2 mods and a stiffer spring as well as the new trigger sear, so far ang wear and tear is dun sa cylinder mismo, dahil malambot ang material lumalaki ang mga butas ng screws.

I use the gun daily for plinking and also serves as my primary during games. So far na ubos ko na isang bag ng ics .25 BB's to the point na na familiarize ko na ang sights and the # of clicks sa hop up for an estimated distance.

Hopefully by the end of the month we'll have a working cylinder setup na mura lang ang costing.

[snyper]

Info updated on first post.

[snyper]

Here's a pic of the trigger assembly with the new sear, to be installed on a new DEM50 with an EDGI upgrade kit. Just waiting for the bolt handle to be finished then this baby will rock. For now it uses the stock spring instead of the SP02 that came with it. Still packs a punch though.

Notice the Spring guide stopper beside the trigger assembly? That is also fabricated from steel to complement the new trigger sear so you will have no worries using the EDGI upgrade kit.

BTW this unit is not mine, its from a customer who wanted to put in all the available upgrades for this baby.




A close-up of the sears, have 4 pcs. left from the first batch. This retails for P850 excluding shipping cost. PM me if your interested. Can ship it by courier to arrive the next day at your specified address. Production is ongoing in batches so no worries on stock availability. Each piece is pre-fitted on my own DEM50 just to make sure everything fits easily when you install it.



I know this is not the right thread to post prices, my apologies. Will post it soon dun sa black market pag nakuha ko na ang bolt handle para may pics at isang posting na lang.

[snyper]

For those who want to replace the bolt handle, just want to share the steel handle that I have made, it once piece and all metal with the textured handle.




Here's a pic of the 3 piece set: trigger sear, spring guide stopper and bolt handle. Notice I have changed the color of the handle to black.

[rjc670]

WoWWooWWeeee!!!

[snyper]

rjc670 said:

WoWWooWWeeee!!!

You said it sir, at ikaw ang may bragging rights as being the first one have all the upgrades.

RANGE? mga dalawang poste on .28 ang ganda pa nang lipad ng bb.
FPS? Still has to chrono it.
ACCURACY AND PRECISION: Di ko pa na document, lagyan mo na lang ng scope and bipod para astig.

But if you want me to do it pede rin, hehehe

[SANDMAN]

Sayang sir. Di ko nakita ang baby ni Rommel nung dumaan sya sa GNR for chrono testing... naka tight barrel na ba yun sir?

RJC- congrats sa bagong baby mo.. na unahan mo pa si sherwin sa upgraded BASR.

[rjc670]

sir SANDMAN - Oo nga sir, naunahan ko pa si sherwin ksi ba naman itong LAYLAX nagpa-raid pa! buti na lang meron si sir EDGI and sir snyper na nanjan handang magbigay ng oras at galing para sa ating kinakailangan na mga custom parts! hehe! and yes nka bull barrel na po ito complements of sir EDGI. next project po namin ay yung kay sherwin na ksi dumating na ibang parts nya!