KWA M4 firing but NOT hitting target
 

MY KWA M4A1 is brand new. I've had it for about a week. I shot about a good 3000 rounds so far with no problems until this morning. Heres the problem:

When I take aim and shoot, my KWA M4 hits the target alright - but 3 inches below from where I point it at. My gun is totally stock, I am currently using the stock iron sights for the front and the rear, funny thing is this never happened yesterday. I've switched onto several sights hoping to solve this aiming problem, EOTech, red dot, etc. NOTHING CHANGED, even with a different elevation and windage the same problem occurs.

I tried adjusing the hop-up it self, I rolled back on fourth and it seems the hop-up doesn't even exist. I also test fired several shots at several distances. From 10 feet to almost 50 feet - same results.

Has anybody encountered the same problem? Anybody know what is going on?
I'm guessing I need to clean the gun right? But which component? Bucking? Hop-up assembly? Something needs to be lubed?

Perhaps my hop-up broke or? I don't know. It was working fine yesterday, its like the gun just doesn't want to work this morning.

I've included a picture to show to screw up this is.
I need everyones advice. All comments are appreciated.

-Rick

__________________________________________________ _____________

EDIT

PROBLEM SOVLED!

After hours of surfing the web for help and trial and error, I've finally decided to open up the gun myself to see what the hell is goin on. My intention was to cleaning out the barrel and hop up chamber, hoping it would fix the problem. To my surprise, after I took apart the chamber, I discovered there was no bucking!!!

For those of you who don't know a "hop-up" system features two rubber pieces, one rubber tube that covers the outside of the inner barrel and another slightly smaller rubber piece inserted into the hop up chamber, the system works by when the dial turns, it lowers and presses smaller rubber piece into the inner barrel making a lump to create the backspin. Figures why the hop up never responded.

Heres a video from youtube showing what that piece looks like,at 1:38 *THAT TINY RUBBER PIECE WAS MISSING*. YouTube - replacing the hopup on an airsoft gun

Who could have thought a non-functioning "Hop-up" was in my F%$#ing gun. For the record my all my sights were correctly.

Anyways........I'm ordering the parts in today from http://www.airsoftparts.ca/store2/. Thanks for all the help.

I've included a picture of the missing piece in my hop-up set.

Maybe simply adjust your hopup a little?

EDIT
Yes, I realize that you're hitting four inches BELOW, it you adjust your hopup a little: The bb will rise on the target.

How far away are you shooting from?

or maybe your sights are off?

I'm shooting from about 10 feet away. Should I turn the hop-up down or up?

clockwise=bullets will go up more
counterclockwise=bullets will go down more

Hopups don't usually noticibly start taking effect until after 10'.

10' is waaaaay too short a distance to be sighting guns, even pistols.

Uh, since we are on this topic, wondering what would be an ideal/good distance to sight an AEG?

Edit: in order to correctly adjust the sights/scope

70 feet is pretty good

Sorry, edited out double post.

You sight the gun at the distance you intend to be shoot at.

you are either aiming wrong or the sights are off, my kwa sights were off until I forcefull turned a few numbs into the right position.

Adjust then shoot, adjust then shoot...only way to see wtf is goin on...

you dont even have a descent gun yet don't give out adivises you don't know about.

you usually sight it in at the distance you usually engage at. 75 feet sounds about good

sights and everything were set up correctly.

Your sights are 2" above the barrel,move farther away.30'min.

no it wasnt. You have to adjust it correctly. If you have your sights zeroed for 80 feet, the shots WILL hit lower than where you aimed for if the range was less than 80 feet(Provided that the BB doesnt nose dive.)

Don't you mean higher if shooting less than 80 feet?.

lower, why would you say higher?

If you set your sights for 80' and shoot at 100',your round will hit lower.
Now if you shoot at 60',your round will hit higher.

Thanks for your help Skladfin and The Saint.

i dont really know where that comes from but this is how it works

http://img174.imageshack.us/img174/6759/scopeod7.jpg

as stated over here by 5.11 tactical(watch the video)

http://www.511tactical.com/511-hrt-t...tch-59209.html

thus shooting 60' with a sight ranged at 80' will cause the shot to hit lower than where you aimed for

Well try it with a gun and see.How come when I shoot past 100m,I
have to aim higher.I shoot 50m and I have aim lower?.The highest
point of the round should be at your zero,not past it.

sigh....

im not going to explain this any further nevermind, just go believe whatever you believe

Your are correct,I goofed.The round will be high before the zero.
This all depends on how close the sights are set.

yes there we go :D

it does depend on how close the sights are set you are right as well

This thread is full of wow...

WOW

your sig says "I have a small *****"

And this is not the first time that happened LOL

http://www.airsoftcanada.com/showthr...854#post759854

I'm goining to try cleaning out the bucking and the barrel.

It's been established that it's not an issue with the gun, it's a problem with your expectations.

I won't enter into a ballistics debate...there's plenty of info on the web about Line of Sight, bullet trajectories and zeroing a rifle on the Internet...and it's explained much more thoroughly than it is here.

But...I will put forward my own observations that airsoft bb trajectories are only vaguely similar to traditional firearms trajectories.

Get out to a field (at a game, not your backyard or anywhere where there's the slightest chance that you'll alarm the public) and pick out something a good long ways away (100feet is a good starting point). Take a couple of shots and keep both eyes (protected by goggles) open to see your shots. Some people have the visual capability to see the bbs and others don't...if you're having trouble, get someone else to spot for you. Shoot at a top of a tree, or the end of a branch or a specific object. (shooting with the sun behind you is easier than shooting into the sun...:D ). Look at the flight path of the bb...not just the absolute impact point.

The flight path should be as level as possible (i.e. very much like a straight level line) until the bb drops off sharply to the ground. This is where airsoft and firearm trajectories differ the most in my opinion. If your shots are falling short/nose diving "quickly"....then turn up your hopup. If they are heading out straight/level and then rising (also a difference between airsoft and firearms trajectories) at the end...then turn down your hopup.

***edit***
Ooops forgot to add this. Once you have your hopup dialed in, then you can turn your attention to zeroing your sights. There's no point in zeroing them if your bbs flight path aren't predictable.
*********

If you're getting wild flyers and some are shooting well and others are going all over the place...or if you're not getting the range that you thought you would...or if you find yourself wanting "just 10 more yards...)...well, welcome to airsoft.

If it's totally botched and just not working, take it someone to get it checked out...it'll save you a bunch of headaches, pain and aggravation.

Did you not read ANYTHING in this thread? In which case, why did you make this thread? If you're not going to listen to people who know what they're talking about....then...just.....ugh.

SONUVA BITCH.... God damn mod did it agian...

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

this is just so fucking hopeless... *Cries in the corner*

euhm .. for the record, the main thread says 'problem solved', but we don't know if it is solved until he puts the bucking into the hop-up and tried it.

Bucking fall off easily once you remove the sleeve, so it could have fallen when he to the hopup apart and he hasnt seen it rolling to the corner of his room. I'd like to get a feedback on this thread to check if it was really a bucking missing.

I'm not saying your lying, but you should wait writing 'problem solved'.

People above my post know that bucking can't disappear, and so i. you said that everythings worked fine for about 3'000 rounds which we all assumed you had play with the hop up a bit once you got your armalite. Btw, that really surprise me to hear that KWA forgot a thing in one of their aeg, they put sector clip in their aeg!

Forgot the nub....oh boy...

Nothing fell out I disassembled the gun on the floor over a white towel. Everything that fall out would have fallen on that towel.

mind you that bucking is EXTREMELY small, it could get caught up in your pants, other parts lying around and its almost impossible to notice.

Probably. W/e hopefully the replacement parts would fix it. Kinda weird how an AEG would act like this.

Its really weird that a hopup can work flawlessly without bucking.

No bucking = no hopup action (spinning). The hammer is not long enough to reach the sleeve.

So you have never setup your hopup even after 3000 rounds... ?

The effect that a hopup would have wouldn't be noticeable at 10 feet anyway.

i was over at ownzyouall a.k.a Ricky's house when he got the replacement. Seems to be working better now.

Kinda weird how an AEG would act broken if it's missing parts?

WTF?

My AEG is fixed. Works just like when it was brand new. I couldn't be happier. :D