Upgrade? or sell to buy new

[Nabors]

I was reading where i guy used a 120 rated spring (380 fps - 410 fps). He said after about 200 rounds his internal gears were destroyed he was using another make m4 but i just wanted to make sure the non blow combat machine m4 internal gears would hold up when using a 120 rated spring

[Vesper]

I had a non-blowback Combat Machine M4 with an M120 spring in it for over a year. I was shooting 25 BPS at 386 FPS with .2 gram BBs, so you'll be fine.

[Nabors]

Thanks for all the help prob going to order some stuff in the next day or so. But just ran into something else that i was curious about. I see a lot of people use Barrel extenders (mock silencer). Saw where someone said you can actually get a longer inner barrel when you do this. 1 is it worth it and 2 what is a good barrel length for a m4. Was looking at a madbull gemtech blackside barrel extension said its about 6 inchs long. I know the stock m4 barrel is 363. If the extender says its 155mm long could I just say i can fit a 518(363stock size+155 extender= 518) barrel in my gun.

[Vesper]

Thanks for all the help prob going to order some stuff in the next day or so. But just ran into something else that i was curious about. I see a lot of people use Barrel extenders (mock silencer). Saw where someone said you can actually get a longer inner barrel when you do this. 1 is it worth it and 2 what is a good barrel length for a m4. Was looking at a madbull gemtech blackside barrel extension said its about 6 inchs long. I know the stock m4 barrel is 363. If the extender says its 155mm long could I just say i can fit a 518(363stock size+155 extender= 518) barrel in my gun.

Whether the barrel extension is not worth is up to you to decide.
M4 internals probably operate best with barrel lengths between 300mm to 400mm.
If you use a longer inner barrel, you need to change the cylinder to non-ported.

I'll leave the details to Dominum.

[Nabors]

I was just guessing since a m4 and m16 I would assume have similar internals it would be fine to go with a barrel that fits a m16 such as the Prometheus EG Precision Inner barrel for m16(509mm)

[Vesper]

I was just guessing since a m4 and m16 I would assume have similar internals it would be fine to go with a barrel that fits a m16 such as the Prometheus EG Precision Inner barrel for m16(509mm)

Unless you want to make a long range gun, I suggest you to stick with standard M4 length barrel. Long barrels are cumbersome when you're trying to move through dense vegitation.

[Bishop]

I was just guessing since a m4 and m16 I would assume have similar internals it would be fine to go with a barrel that fits a m16 such as the Prometheus EG Precision Inner barrel for m16(509mm)

You don't need any more than a 363 anyways. It's not going to make enough of a difference in accuracy. Economically, I have one of the Prometheus ASH 6.05 barrels, and it is fantastic

[Vesper]

Combat Machine stock barrel is already 6.04mm.

[Nabors]

This is what I'm thinking about buying let me know what you think.

*MadBull Ultimate 3-1 Hop Up Chamber
*MadBull Ver.2 Precision Inner Barrel for M4 (363mm)
*Systema Hop Up Bucking
*MadBull M120 Spring
*Magpull PTS CTR Stock w/ butpad (Ver.2)
*King Arms M16(5 pack) 120rds Midcap mags - I dont like high caps cause the rattle I sneak around alot
*MadBull JP Rifle Style Flash Hider CCW

[Vesper]

This is what I'm thinking about buying let me know what you think.

*MadBull Ultimate 3-1 Hop Up Chamber
*MadBull Ver.2 Precision Inner Barrel for M4 (363mm)
*Systema Hop Up Bucking
*MadBull M120 Spring
*Magpull PTS CTR Stock w/ butpad (Ver.2)
*King Arms M16(5 pack) 120rds Midcap mags - I dont like high caps cause the rattle I sneak around alot
*MadBull JP Rifle Style Flash Hider CCW

Don't bother with Systema bucking. Stock bucking is just as good, if not better.
If you get a Madbull M120 spring, you MAY or may not have to get a new motor. Madbull M120 = normal M130.

[Nabors]

Ive hear that systema bucking is like the best to have?

[Bishop]

If your going to do magpul, try and get the ACM Clone stuff. There's a guy ttiger who sells them off airsoftforum, and it will most likely be about half or less the cost of regular magpul. Just google ttiger airsoft and his stuff pops up.

As for the Barrel, I would recommend the Prometheus ASH over the madbull, but both are good barrels. The stock barrel is also very good, but the madbull and ASH are both improvements. One Thing I would suggest to also look into would be a new air nozzle, Prometheus makes a good one of those.

The Stock Hopup chamber is fine, don't worry about upgrading that, since it looks like you don't want to go full DMR, just have a really good assault rifle. Vesper was right when he said the stock bucking was better, save your money from the bucking and hopup chamber and pay to have Star_Folder put a flathop in it. If you want to hit out to the 240+ ft range, its going to get you there.

Cant really comment too much on the flashhider, I have a suppressor on mine instead of a flash hider.

Now, for some ergonomics suggestions, replace the pistol grip with a magpul grip, as well as replacing the front end with a Magpul MOE frontgrip. Both of those do wonders for making your gun more comfortable, especially over long times. There are other alternatives, but I like the magpul gear the best personally.

Depending on your eyesight, you may want to look into getting a affordable 4x scope as well. I am picking one up since my eyesight is so terrible I cant see the bbs past 220 or so even with my glasses.

[Nabors]

I was thinking about going with EoTech Style Square View Magnifier with FTS Mount and a good holo sight. Thanks for the info on ttiger hes got alot stuff i want.

[Vesper]

Ive hear that systema bucking is like the best to have?

Systema bucking doesn't suck, but it's certainly not the best. If you want to talk about the best, nothing beats Tokio Marui hop up bucking.
And don't bother with getting a new tight bore barrel. Combat Machine stock inner barrel is already 6.04mm wide.

[SteevoLS]

*MadBull Ultimate 3-1 Hop Up Chamber
STAY AWAY! Horrible fitment issues, and doesn't do anything that a $20 or DIY flat hop mod won't do better.

*MadBull Ver.2 Precision Inner Barrel for M4 (363mm)
Not too bad. I'd honestly get a Vanaras from RSOV before I bought a Madbull, though.

*Systema Hop Up Bucking
What they said.

*MadBull M120 Spring
What they said. Nothing *wrong* with it, but it will be a M130 by most other standards.

*Magpull PTS CTR Stock w/ butpad (Ver.2)
Clone CTRs are fantastic.

*King Arms M16(5 pack) 120rds Midcap mags - I dont like high caps cause the rattle I sneak around alot
King Arms, MAG, Green label, whatever. Most of the plastic midcaps fit, feed, and feel about the same.

*MadBull JP Rifle Style Flash Hider CCW
If you're not set on that *exact* flashhider, pick up this one and save yourself $15. It's the same style, with slightly different ports. http://www.weaponblender.com/index.php?productID=1643