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Old 01-21-2008, 08:40 PM
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M4 double firing

My Echo 1 M4A1 has been shooting 2 bb's at once. It did this the day I bought it, but not very often (I got this gun a couple months after Echo launched their M16/M4 line-up, so this isn't a version 3). Now it is doing it every 10 shots or so. I've read that the hop-up bucking and even the hop-up unit in general can be a little sketchy in Echo 1 guns, I'm not sure if this would be the cause. The Chinglish troubleshooting intructions with the gun say that a low battery and having the hop off can cause shotgun blasts. I normally don't look at these manuals because they are useless and look like some underpayed Chinese worker went to Google translator and put the Chinese instructions through into "English". Yet, these seemed like reasonable solutions...well, not really...but they were the only solutions I had to try.

So I played with the hop-up at different settings, but it doesn't really make a difference. A fully charged battery doesn't really seem to help much either. So if anyone has any suggestions/solutions, I'd greatly appreciate them.

Now that I'm getting into this, I have another complaint about the M4, the damn barrel. I know a lot of M4s (like Mauri) have a barrel wobble, but it just makes the gun seem flimsy. I tightened the big nut of sorts under the delta ring (yes...I said "big nut"), and it doesn't wobble anymore really. Yet, I can't rest the carbine's foregrip in my hand without moving the barrel up and thowing off my aim. So I just rest my hand in front of the mag well behind the foregrip. I'm sure this is an unavoidable aspect of the gun, but I needed to complain.

If I didn't already own so many frikin guns, I'd get Echo's G36C. That gun is solid at least, no need to touch the barrel and move it...the foregrip is part of the guns body. If anyone wants to buy some guns, I've got an armory, I'm ready to start selling.
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Old 01-21-2008, 08:59 PM
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have you tried replacing the hopup bucking and ***?

Edit: its blocking me from saying n-u-b, why?
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Old 01-21-2008, 09:27 PM
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Quote:
Originally Posted by sniper1 View Post
have you tried replacing the hopup bucking and ***?

Edit: its blocking me from saying n-u-b, why?
Yes, I noticed that too. N-U-B and N-U-B-B-I-N-G are apparently now curse words. But I would say that your bucking is the most seemly problem.

Try spraying some silicone lube up into the hop unit itself through the magwell, this might help after you've shot the excess lube out.
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Old 01-21-2008, 09:34 PM
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my friend had this problem with his echo 1 M4. believe it or not its just the factory mag. if you try it with another hi-cap or some mag brnad mags it will feed like normal.


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Old 01-21-2008, 09:53 PM
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hop up bucking
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Old 01-21-2008, 11:07 PM
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To a degree, it is possible it could be a mag. However, since this is an Echo 1 with what I assume is a stock bucking and n-u-b... I would replace them anyways with a good name brand bucking just to pick up that extra little bit of performance that you may get. It is very possible that is the main problem you are having.
I guess you could try lubing your mag or try another mag and see if it fixes anything. On my Echo 1 M14 it did absolutely nothing switching between the Echo 1 high cap and TM mid caps.

Good luck.
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Old 01-22-2008, 07:34 AM
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I recommend getting a Guarder bucking. I know some people tell me there is no difference, but they are harder, from my experience they last longer and I seem to get a slight bit of increase in accuracy with it.

also, take it to a qualified airsoft shop so that they can install it if you have never replaced a bucking and n-u-b before.

http://www.airsoftarms.com/view_prod...+Hopup+Bucking
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Old 01-22-2008, 08:58 AM
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I had this issue with my ICS M16A3. I too found that an after market bucking and ***bin corrected the problem for me.
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Old 01-22-2008, 07:44 PM
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Quote:
Originally Posted by sniper1 View Post
I recommend getting a Guarder bucking. I know some people tell me there is no difference, but they are harder, from my experience they last longer and I seem to get a slight bit of increase in accuracy with it.

also, take it to a qualified airsoft shop so that they can install it if you have never replaced a bucking and n-u-b before.

http://www.airsoftarms.com/view_prod...+Hopup+Bucking
Thanks for all your answers everyone, this place never ceases to be helpful. I'll try the simple solutions first. I clean my gun's barrels/n-u-bing all the time, but doing it again and a little more thoroughly couldn't hurt. I was also told by Texx in the AO chat there could be some flash left on the n-u-bing and I could just carefully cut that off with nail clippers to get a rounded edge of sorts.

As to Sniper1, yeah, I wouldn't mind picking up a new hopup unit. I'm not experienced with internals though, so I'd feel more comfortable taking it to a shop. Do you know where any are in north eastern Ohio? There is a Pinnacle Woods 5 mins from me. I know they are primarily a paintball shop, but I've been in there a few years ago to pick up some green gas. I haven't been there since, so I have no idea if they do anything more with airsoft. Thanks again guys.

Last edited by Mr.Durp; 01-22-2008 at 07:47 PM. Reason: Typo
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Old 01-22-2008, 08:43 PM
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Last I knew Pinnacle DID NOT work on airsoft replicas. Closest places I know of are Airsoft Smith and Airsoft Arms in Columbus.
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Old 01-22-2008, 09:31 PM
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also do u turn your hopup completely off when you clean your barrel? If you don't you may have torn the bucking.

Quote:
Originally Posted by Mr.Durp View Post
Thanks for all your answers everyone, this place never ceases to be helpful. I'll try the simple solutions first. I clean my gun's barrels/n-u-bing all the time, but doing it again and a little more thoroughly couldn't hurt. I was also told by Texx in the AO chat there could be some flash left on the n-u-bing and I could just carefully cut that off with nail clippers to get a rounded edge of sorts.

As to Sniper1, yeah, I wouldn't mind picking up a new hopup unit. I'm not experienced with internals though, so I'd feel more comfortable taking it to a shop. Do you know where any are in north eastern Ohio? There is a Pinnacle Woods 5 mins from me. I know they are primarily a paintball shop, but I've been in there a few years ago to pick up some green gas. I haven't been there since, so I have no idea if they do anything more with airsoft. Thanks again guys.
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Old 01-22-2008, 09:59 PM
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Quote:
Originally Posted by sniper1 View Post
also do u turn your hopup completely off when you clean your barrel? If you don't you may have torn the bucking.
Yes, I always do. I'm not an experienced airsoft player by any means, but I'm not that new to the hobby.
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