WE Scar Upper

[Wongidool]

Hey guys, long time lurker first time poster here.

I am currently trying to decide between the OB WE Scar and PDW for my first GBBR, currently leaning towards the Scar a bit more. Looking through some mod threads I have seen pictures of people with differently configured uppers for their M4's (nothing new from RS) and I was wondering if it's possible to do with the Scar? Some googling for replacement uppers yielded no results, so I thought someone here has to know the answer. Ideally I'd like to set up a DMR upper and a CQB upper.

Also, has anyone modified the magpul B.A.D lever to fit their Scar? What all is required to make it work?

Thanks!

[m102404]

Yes, you can have different uppers for any of the we Gbbrs that split like that.

Can you find another? That might be harder for a pdw or scar than an m4. If you do...it should work. Also...there aren't many/any outer barrels for them (there may be now, but I don't think that there'll be much choice)...so that may put a dent in your plans beyond just adding a silencer.

You might find a broken gun to salvage another upper...however, with the costs of new ones, you're pretty good just buying another new one for the setup. Unless a fixer one comes with a bunch of mags, then it'd be worth considering.

While the scar looks bad ass...I think that it suffers from an inherent design flaw in how the trigger mech sits in the plastic lower. It doesn't sustain the forces of the gun well. Also, there are design issues with the stock back plate breaking....but there are metal ones readily available so that's an easy fix.

[Wongidool]

Originally Posted by m102404

While the scar looks bad ass...I think that it suffers from an inherent design flaw in how the trigger mech sits in the plastic lower. It doesn't sustain the forces of the gun well. Also, there are design issues with the stock back plate breaking....but there are metal ones readily available so that's an easy fix.

I've actually been following the big WETTI threads pretty heavily since I settled on that brand for my GBBR and know that you are very well versed in them, so I'm quite glad you responded. As for the trigger not sustaining forces well, do they tend to break in the Scar? Haven't seen much on that.

Given that you have done some pretty extensive testing/working on them, which do you find more reliable?

[m102404]

Every one of the models has one or two particular faults. How easily, quickly, simply it can be repaired is the key. Note, they'll all wear...but most are good for thousands of rounds. Each models have their own pros, cons, likes, dislikes....same as if the rifles were electric. So the following doesn't get into that...more the common issues that come up.

In general...replacement stock pieces are cheap...and easy to get, especially the M4

M4
. First gen mags leak...gasket seal...cheap, easy
. Nozzle may break on jams...swap in new nozzle, easy...drop in a spare bolt with nozzle, fast and easy

G36
. Charging handle can snap...harder to find replacement

Ak
. Heavy bolt is really hard on the parts.

G36
. Back receiver plate breaks...replace with metal one
. Lower receiver is plastic...flexes and moves from upper...causes firing issues. It takes time for it to evolve, but once it does, it's not fixable

[slink182]

Originally Posted by m102404

SCAR
. Back receiver plate breaks...replace with metal one
. Lower receiver is plastic...flexes and moves from upper...causes firing issues. It takes time for it to evolve, but once it does, it's not fixable

Fixed.

[Fox62]

Originally Posted by m102404

While the scar looks bad ass...I think that it suffers from an inherent design flaw in how the trigger mech sits in the plastic lower. It doesn't sustain the forces of the gun well. Also, there are design issues with the stock back plate breaking....but there are metal ones readily available so that's an easy fix.

How many rounds...50000? It's a very good quality polymer, and I've never heard of a lower wearing out. The trigger set might be a bit flimsy, but if you manage to fix the trigger roller pin in place, the rest will hold up for a long time.

The SCAR back plate thing must be from older gen guns, because the aluminum back plate is a POS that won't really lock due to huge tolerances, has a HORRIBLE finish, and is totally unnecessary (a replacement back plate costs about 10 USD, and they will fit perfectly - plus I never actually managed to break any, and it's my main gun).

It's really easy to fully customize the SCAR at least, and make it suitable for whatever role you want to use it for.


Fox.

[Wongidool]

Originally Posted by m102404

G36 (Scar I assume?)
. Back receiver plate breaks...replace with metal one
. Lower receiver is plastic...flexes and moves from upper...causes firing issues. It takes time for it to evolve, but once it does, it's not fixable

This is the first I've heard of this happening in my reseraching, how common is this issue with the new generation Scars?

Originally Posted by Fox62

(a replacement back plate costs about 10 USD, and they will fit perfectly - plus I never actually managed to break any, and it's my main gun).

It's really easy to fully customize the SCAR at least, and make it suitable for whatever role you want to use it for.

My plan was to order some replacement parts to have on hand and repair in field just like you've said. And the level of customization is one of the reasons I'm leaning towards the Scar more, just isn't a whole lot of rails on the pdw and I think for a first GBBR (I have a TM M4RIS as well) the ability to do more with it would make sense, then pick up the pdw or something later.

Thanks for the input guys, greatly appreciated. I am hoping to get out and play tomorrow, one of the guys in our group has the we pdw that I can try out and also has an aeg scar so I can get an idea for how it is ergonomically anyway, but the technical information is almost more important

Edit: Also, I plan on running co2 predominately but wouldn't mind a couple gg mags around. Any idea where a good place to find the 2nd gen ones is? I've looked on Evike and ASGI and neither specify.

[Fox62]

Originally Posted by Wongidool

Edit: Also, I plan on running co2 predominately but wouldn't mind a couple gg mags around. Any idea where a good place to find the 2nd gen ones is? I've looked on Evike and ASGI and neither specify.

Don't run CO2. CO2 is crap on WE guns. Your gun will run MUCH better on unlubricated propane (no green gas; the lube will mess with your bucking. You should lube the gun and mag o-rings manually.).


Fox.

[Wongidool]

Well the reason I was planning on running CO2 is it gets pretty cold up here in the winter and we have played in weather down to about 15F if memory serves. I've seen threads on people using propylene in the winter but I have seen lots of pro's to running CO2 in that weather range. I'd rather not shelf the GBBR during winter if at all possible.

What is so crap about CO2 on WE? I honestly haven't seen much negativity about it

Edit: Also when I was refering to gg I did mean propane, we usually lube ours but it's not a big deal to leave out the oil on a can of propane. Just to clarify

[Fox62]

Originally Posted by Wongidool

Well the reason I was planning on running CO2 is it gets pretty cold up here in the winter and we have played in weather down to about 15F if memory serves. I've seen threads on people using propylene in the winter but I have seen lots of pro's to running CO2 in that weather range. I'd rather not shelf the GBBR during winter if at all possible.

What is so crap about CO2 on WE? I honestly haven't seen much negativity about it

Edit: Also when I was refering to gg I did mean propane, we usually lube ours but it's not a big deal to leave out the oil on a can of propane. Just to clarify

Don't lube the propane, lube the gun.

Why? Because it'll give you less FPS, pretty much the same (or worse) consistency, you gotta change the caplet every 45 shots or so (meaning worse gas efficiency per full mag load - propane will give you about 70-80 shots). And honestly LOL, the mags freeze worse than propane in the winter.

WE's work decently in the cold on propane, like WE G39C Performance in The Cold and Snow - YouTube.


Fox.

[Wongidool]

Originally Posted by Fox62

Don't lube the propane, lube the gun.

Why? Because it'll give you less FPS, pretty much the same (or worse) consistency, you gotta change the caplet every 45 shots or so (meaning worse gas efficiency per full mag load - propane will give you about 70-80 shots). And honestly LOL, the mags freeze worse than propane in the winter.

WE's work decently in the cold on propane, like WE G39C Performance in The Cold and Snow - YouTube.


Fox.

Yup, just recently learned about lubing gun v propane, but I only use it for my pistol so if the hop is off a bit it's not too worrysome.

I've heard the bit about 1.5mags/capsule, but at the same temp CO2 should have more pressure than propane so it should always yield more FPS and I've heard that CO2 handles the cold better. This is actually the first I've heard or it performing worse in cold (nothing against your statement, just is what I've seen)

I find that YouTube link awesome and intriguing. Some of my team has WE M4 may guns and they certainly don't do that on propane, I wonder if the G39 mag is just better suited. If I didn't detest the G39 so much I would be tempted to get that instead. I tried to find the same for an M4 magazine but the closest I came was a PDW that had been in a warm vehicle for an hour, and it still looked like it was having problems.

Either way I appreciate the contradiction to what I've found, always nice to be able to see it from multiple views

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[Fox62]

Originally Posted by Wongidool

Yup, just recently learned about lubing gun v propane, but I only use it for my pistol so if the hop is off a bit it's not too worrysome.

I've heard the bit about 1.5mags/capsule, but at the same temp CO2 should have more pressure than propane so it should always yield more FPS and I've heard that CO2 handles the cold better. This is actually the first I've heard or it performing worse in cold (nothing against your statement, just is what I've seen)

I find that YouTube link awesome and intriguing. Some of my team has WE M4 may guns and they certainly don't do that on propane, I wonder if the G39 mag is just better suited. If I didn't detest the G39 so much I would be tempted to get that instead. I tried to find the same for an M4 magazine but the closest I came was a PDW that had been in a warm vehicle for an hour, and it still looked like it was having problems.

Either way I appreciate the contradiction to what I've found, always nice to be able to see it from multiple views

Sent from my Nook Tablet using Tapatalk 2

The gen2 STANAG mags were released only recently, hence why no videos. Those will probably yield similar results to what you saw on the G39 (same with the VN Style M4 mags from WE, those are the ones I run, and the Gen2 mag design is the same as on them).

No, the valve is smaller on CO2 mags, so while CO2 has more pressure, less gas is actually used. That's why CO2 mags will give ya less FPS (albeit slightly). I've tested EVERYTHING on my SCAR. WE CO2 mags freeze horribly in the cold, and the consistency is crap. Take it from guys running stock guns or from someone who's been to hell and back with his WE build.


Fox.

[Wongidool]

Originally Posted by Fox62

The gen2 STANAG mags were released only recently, hence why no videos. Those will probably yield similar results to what you saw on the G39 (same with the VN Style M4 mags from WE, those are the ones I run, and the Gen2 mag design is the same as on them).

No, the valve is smaller on CO2 mags, so while CO2 has more pressure, less gas is actually used. That's why CO2 mags will give ya less FPS (albeit slightly). I've tested EVERYTHING on my SCAR. WE CO2 mags freeze horribly in the cold, and the consistency is crap. Take it from guys running stock guns or from someone who's been to hell and back with his WE build.


Fox.

Ok, where have you found the gen 2 magazines in stock at? I'll probably order a couple with my gun if possible, but evike doesn't specify

Edit: Looking into it, are the new OB Stanag mags version 2? Looks like they might be

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[Fox62]

Originally Posted by Wongidool

Ok, where have you found the gen 2 magazines in stock at? I'll probably order a couple with my gun if possible, but evike doesn't specify

Edit: Looking into it, are the new OB Stanag mags version 2? Looks like they might be

Sent from my DROID X2 using Tapatalk 2

Yeah, it's the new STANAG mags, ask the shop if it's the Gen1 or Gen2 they are selling.


Fox.

[Wongidool]

Alright sounds good, I dropped evike an email. We'll see. Will probably end up ordering from there either way since it's the best price I can get online. Even if I get the Gen 1 magazines, I can always get some gasket sealer down on them, hear that works pretty well too.

Thanks a lot for the advice Fox