WETTI/AWSS - M4/SCAR/HK416 - Technical Summary Thread

Huron · March 7th, 2012, 23:42

R1ghty, are you using an aftermarket inner barrel and mid-heavyweight Bastards?

Okay so if anyone is running/trying to run CO2 and has magazines leaking out the top... I found a solid fix!

http://gasguns.info/forum/viewtopic....=1737&start=30

Worked on my worst leaking mag, and I'm going to do up the other 11 and run them all in near-zero temperatures next week. I'll report back with performance. I'm just using whatever material of o-ring I can find in the right size, but from a quick search butadiene seems like the best for this application. If I don't get a good lifespan out of the current o-rings I will probably retrofit the magazines with butadiene rings from here:

http://www.plasticservices.com/HoseFittings/orings.htm

talon · March 21st, 2012, 13:18

Does anybody know offhand if a real charging handle latch will fit in the WE charging handle closed bolt? I've looked around, and haven't found many people who've done it, and written about it.

MattiasST · May 22nd, 2012, 21:26

I got question, what kind of sling mount will fit with awss M4? This kind? http://www.brotherprice.com/ebphoto/...20GBB%20WA.jpg

LongStone · June 7th, 2012, 19:01

Quote:

Originally Posted by MattiasST

I got question, what kind of sling mount will fit with awss M4? This kind? http://www.brotherprice.com/ebphoto/...20GBB%20WA.jpg

should fit
GBBR plates have the "pin" at the bottom
http://www.airsoftparts.ca/store2/in...oducts_id=2038
AEG's usually have notches
http://www.airsoftparts.ca/store2/in...oducts_id=1499

LongStone · June 7th, 2012, 19:02

I have to loctite my NPAS, i've seen it mentioned a few times but no recommendations how it should be done.
just pull it out and saturate the threads?

m102404 · June 8th, 2012, 09:39

Same as loctite'ing any other screw. I just put a small dab on the threads, screw it together, wipe off excess and let set. There's other types that are meant to be put on and let dry before assembly, but the instructions on the package should give the best method for whatever brand/type you have.

Lubifier · September 3rd, 2012, 13:58

Hello fellow SCAR users,

I have a WE SCAR-L Open Bolt that's giving me grief. I've only had it for 5 months (about 400 rounds) and I've already had to replace parts on it. The protrusion on the plastic nozzle that picks up the BBs from the Mag broke twice already. And now the gun doesn't want to cycle. No double action semi-auto functionality. I have to manually cock the gun between shots. The bolt still flys back and loads the next BB but nothing joy on the trigger. Same thing with Auto mode. I cock the gun and pull the trigger to fire. But soon as I let up on the trigger, I need to re-cock the gun to get it to fire again. A single action SCAR-L!

Any thoughts?

Ross · September 3rd, 2012, 15:21

Shouldn't be breaking that often. My ob scar nozzle went thousands of rounds and the nozzle never broke. Do you have an npas installed? Also you live in the Yukon. What temperature is it when you are firing the scar?

Lubifier · September 4th, 2012, 01:02

Quote:

Originally Posted by Ross

Shouldn't be breaking that often. My ob scar nozzle went thousands of rounds and the nozzle never broke. Do you have an npas installed? Also you live in the Yukon. What temperature is it when you are firing the scar?

I don't have an NPAS installed. I'm so new to the sport I don't even know what that is yet. I've only have the gun outdoors for two games here in the Yukon. It's summer time temps of 15-25c.

I've noticed the floating valve inside the bolt carrier is really sticky. The hammer roller has exerted alot of pressure on the underside of the bolt carrier and worn a decent groove into it even though I've been keeping the gun well lubed with silicon oil. I can't help but wonder if the inner cylinder is out of round. Would this cause a single action firing characteristic?

Lubifier

Lubifier · September 4th, 2012, 02:40

Quote:

Originally Posted by Lubifier

I don't have an NPAS installed. I'm so new to the sport I don't even know what that is yet. I've only have the gun outdoors for two games here in the Yukon. It's summer time temps of 15-25c.

I've noticed the floating valve inside the bolt carrier is really sticky. The hammer roller has exerted alot of pressure on the underside of the bolt carrier and worn a decent groove into it even though I've been keeping the gun well lubed with silicon oil. I can't help but wonder if the inner cylinder is out of round. Would this cause a single action firing characteristic?

I cleaned the floating valve in the bolt carrier and filed down any protruding edges that I thought might be hindering it. After a light oiling and re-assembly I'm still left with a single action rifle. So I says to myself, "what else could it be?". And I knew it was me asking because I recognized my voice.

The hammer is resetting but when I pull the trigger, no joy. With the lower receiver removed I cycled the hammer but always releasing trigger pressure before reset. Then the "aha" moment. Hammer reset, pull and hold trigger and reset hammer. Release trigger and pull again. No joy! With a little bit of back pressure on the trigger it did reset.

My issue is with the trigger assembly now. A trigger that won't reset. Is this another one of the WE SCAR-L's famous inevitable breakages?

Tomorrow I'll venture into trigger dis-assembly to see what I can see.

Lubifier

Danke · September 5th, 2012, 16:19

So I got a WE M4 Charging handle as in the link below as I hear the original one will break at some point.

http://www.airsoftparts.ca/store2/in...oducts_id=2330

It is beyond tight to install. The original handle slips in and out of the upper with no fuss and slides smoothly; the DYTAC one has to pushed up into the receiver when you line up the ears and you can only push it forward a few mm before it's wedged.

The package itself is labled WE M4 GBB. Has anyone else put one in? Any feedback? I don't want to hammer it in, and I don't want to grind it either. I have a film of grease in action so it's not a dry metal on metal situation.

m102404 · September 5th, 2012, 16:37

I'm sick of all these "upgrades" and "replacement" parts. I litterally have bags of stuff that won't fit into guns...guys buy this steel part or that steel part, struggle with it and then leave it on the bench out of frustration or ambivalence. What a waste of money.

I really have no idea what "standard" rifle these guys are spec'ing their parts from. More than a few bright shiny steel parts just plain don't fit.

@ Danke...sorry...you'll have to compare it to the stock one and adjust either the charging handle or receiver to fit. You're going to have to look at all the dimensions. If it's going to weaken the part too much...just don't bother. I can't remember what a stock charging handle runs...but it's not much.

Personally...I've ever only broken 1...and that was from pounding on the receiver to set an overly tight gas block to a barrel (I should have taken the charging handle out of the upper). I've never broken one in usage. The other ones I've seen broken is where guys have had their bolt jam and they've tried to force the bolt with the handle (which it is not strong enough to do that).

Most bolt jams are from:
1. The bolt is hanging up on tip of the bolt release....just file it down a bit
2. The bolt is hanging up on the retainer cap that holds the buffer retaining pin in the lower receiver...mod the retaining cap/pin and use loctite to set it flush (retaining cap) with the receiver
3. The pin that holds the roller on the hammer is coming out...either flare the ends of the pin and/or put a slight bend into it and reinstall.

Danke · September 5th, 2012, 16:51

It was one of those; "let's see what I can add to my Airsoft Parts Canada" order moments. I'm sure we've all done it. Not essential and good to hear the charging handle isn't a ticking time bomb.

Got 3 new buckings to try also. RA tech, Nine Ball, & Modify.

I try to stick to "if it ain't broke don't fix it" but sometimes the voices overpower common sense.

redneck12 · September 5th, 2012, 17:41

Danke I installed the same charging handle in my WE M4, all I had to do was file a small amount off the tabs on both sides. After the mod it slides in and out like butter.

m102404 · September 5th, 2012, 17:43

LOL...you're preaching to the choir! And yeah...I do the "Walk in for a hopup rubber...leave after spending $$$) all the time.

But with the "upgrade" parts that have come out for the WE....it's just bad. It's almost like the bizzaro-world of when all those really cheap clone parts came out. They look the part, the finish and materials are usually really good vs. crap clone stuff...but they just don't work. And I guess the good/bad part of GBBRs is that you can actually mod/grind/alter parts to make things work (vs. crappy AEG internals). IMO, it's like all these precision parts need to be modded to put some slop into them.

Anyways...such is life...I'm just grumpy and ranting.

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March 21st, 2012, 13:18	#962
talon Trader rating Join Date: Feb 2006 Location: Ghosts HQ	Does anybody know offhand if a real charging handle latch will fit in the WE charging handle closed bolt? I've looked around, and haven't found many people who've done it, and written about it. __________________ http://img.photobucket.com/albums/v2...lon/ghosts.gif ACUFART Forever!!! Team GHOSTS - Fides et Amicitia

September 3rd, 2012, 13:58	#967
Lubifier Trader rating Join Date: Apr 2011 Location: Yukon Terrritory	WE SCAR-L Open Bolt issues Hello fellow SCAR users, I have a WE SCAR-L Open Bolt that's giving me grief. I've only had it for 5 months (about 400 rounds) and I've already had to replace parts on it. The protrusion on the plastic nozzle that picks up the BBs from the Mag broke twice already. And now the gun doesn't want to cycle. No double action semi-auto functionality. I have to manually cock the gun between shots. The bolt still flys back and loads the next BB but nothing joy on the trigger. Same thing with Auto mode. I cock the gun and pull the trigger to fire. But soon as I let up on the trigger, I need to re-cock the gun to get it to fire again. A single action SCAR-L! Any thoughts? Last edited by Lubifier; September 3rd, 2012 at 14:07..

September 3rd, 2012, 15:21	#968
Ross Trader rating Join Date: Nov 2009 Location: Winnipeg	Shouldn't be breaking that often. My ob scar nozzle went thousands of rounds and the nozzle never broke. Do you have an npas installed? Also you live in the Yukon. What temperature is it when you are firing the scar? __________________

May 22nd, 2012, 21:26	#963
MattiasST Trader rating Join Date: Feb 2012	I got question, what kind of sling mount will fit with awss M4? This kind? http://www.brotherprice.com/ebphoto/...20GBB%20WA.jpg

June 7th, 2012, 19:02	#965
LongStone Trader rating Join Date: Sep 2010 Location: North Halton	I have to loctite my NPAS, i've seen it mentioned a few times but no recommendations how it should be done. just pull it out and saturate the threads?

June 8th, 2012, 09:39	#966
m102404 Tys Trader rating Join Date: Apr 2006 Location: Toronto	Same as loctite'ing any other screw. I just put a small dab on the threads, screw it together, wipe off excess and let set. There's other types that are meant to be put on and let dry before assembly, but the instructions on the package should give the best method for whatever brand/type you have.

September 5th, 2012, 16:19	#971
Danke Prancercise Guru Trader rating Join Date: Oct 2007 Location: Danger Zone	DYTAC Charging handle So I got a WE M4 Charging handle as in the link below as I hear the original one will break at some point. http://www.airsoftparts.ca/store2/in...oducts_id=2330 It is beyond tight to install. The original handle slips in and out of the upper with no fuss and slides smoothly; the DYTAC one has to pushed up into the receiver when you line up the ears and you can only push it forward a few mm before it's wedged. The package itself is labled WE M4 GBB. Has anyone else put one in? Any feedback? I don't want to hammer it in, and I don't want to grind it either. I have a film of grease in action so it's not a dry metal on metal situation. __________________ Airsoft, where nothing is hurt but feelings.

September 5th, 2012, 16:37	#972
m102404 Tys Trader rating Join Date: Apr 2006 Location: Toronto	I'm sick of all these "upgrades" and "replacement" parts. I litterally have bags of stuff that won't fit into guns...guys buy this steel part or that steel part, struggle with it and then leave it on the bench out of frustration or ambivalence. What a waste of money. I really have no idea what "standard" rifle these guys are spec'ing their parts from. More than a few bright shiny steel parts just plain don't fit. @ Danke...sorry...you'll have to compare it to the stock one and adjust either the charging handle or receiver to fit. You're going to have to look at all the dimensions. If it's going to weaken the part too much...just don't bother. I can't remember what a stock charging handle runs...but it's not much. Personally...I've ever only broken 1...and that was from pounding on the receiver to set an overly tight gas block to a barrel (I should have taken the charging handle out of the upper). I've never broken one in usage. The other ones I've seen broken is where guys have had their bolt jam and they've tried to force the bolt with the handle (which it is not strong enough to do that). Most bolt jams are from: 1. The bolt is hanging up on tip of the bolt release....just file it down a bit 2. The bolt is hanging up on the retainer cap that holds the buffer retaining pin in the lower receiver...mod the retaining cap/pin and use loctite to set it flush (retaining cap) with the receiver 3. The pin that holds the roller on the hammer is coming out...either flare the ends of the pin and/or put a slight bend into it and reinstall.

September 5th, 2012, 16:51	#973
Danke Prancercise Guru Trader rating Join Date: Oct 2007 Location: Danger Zone	It was one of those; "let's see what I can add to my Airsoft Parts Canada" order moments. I'm sure we've all done it. Not essential and good to hear the charging handle isn't a ticking time bomb. Got 3 new buckings to try also. RA tech, Nine Ball, & Modify. I try to stick to "if it ain't broke don't fix it" but sometimes the voices overpower common sense. __________________ Airsoft, where nothing is hurt but feelings.

September 5th, 2012, 17:41	#974
redneck12 Trader rating Join Date: Mar 2011 Location: Peterborough	Danke I installed the same charging handle in my WE M4, all I had to do was file a small amount off the tabs on both sides. After the mod it slides in and out like butter.

September 5th, 2012, 17:43	#975
m102404 Tys Trader rating Join Date: Apr 2006 Location: Toronto	LOL...you're preaching to the choir! And yeah...I do the "Walk in for a hopup rubber...leave after spending $$$) all the time. But with the "upgrade" parts that have come out for the WE....it's just bad. It's almost like the bizzaro-world of when all those really cheap clone parts came out. They look the part, the finish and materials are usually really good vs. crap clone stuff...but they just don't work. And I guess the good/bad part of GBBRs is that you can actually mod/grind/alter parts to make things work (vs. crappy AEG internals). IMO, it's like all these precision parts need to be modded to put some slop into them. Anyways...such is life...I'm just grumpy and ranting.

WETTI/AWSS - M4/SCAR/HK416 - Technical Summary Thread

Upgrades & Modifications