Walther MP5 Chamber Concerns

[ojisan]

It could be that there was a small void (caused by an airspace or impurity) in the metal, that the extractor claw cut has exposed.
But, not all extractor notches in barrels are cut by something like a milling tool.
Often, brutal as it sounds, a fixture is used to rigidly hold the barrel at an angle, then basically a chisel blade makes a single vertical strike down through the end of the barrel, forming the groove.
Sometimes a little extra metal is torn out during this operation, this may be what you are seeing.

On a .22LR you are probably OK, and if others have the same kind of mark, it's probably normal.

[4EverPouring3WM]

I just checked mine and there is no such mark at all, buttery smooth. I did notice just now a chip on the opposite side upper portion on mine tho. But then again I've easily put over 25k rounds through it...I intentionally didn't clean it for the first 7500 rounds and it never quit. All kinds of gunk was in there when I finally cleaned her tho.

[4EverPouring3WM]

. Now it's new in the box and I want to get rid of it. Anyone want a new one with 6 new mags for $300?

I'll take it for you're serious. ..

[Shrubmaster]

What kinda of wear are you noticing?

It appears to be the extractor rubbing against the notch in the barrel. Extra tight perhaps?

[Allidoisfish]

It could be that there was a small void (caused by an airspace or impurity) in the metal, that the extractor claw cut has exposed.
But, not all extractor notches in barrels are cut by something like a milling tool.
Often, brutal as it sounds, a fixture is used to rigidly hold the barrel at an angle, then basically a chisel blade makes a single vertical strike down through the end of the barrel, forming the groove.
Sometimes a little extra metal is torn out during this operation, this may be what you are seeing.

On a .22LR you are probably OK, and if others have the same kind of mark, it's probably normal.

I think this is probably what it is, No one else so far on this forum has this issue. I have contacted Walther and Im waiting on a reply from them. I want to shoot the gun so bad but Its probably best to just wait

More waiting after waiting for this thing in jail for 30 days

[Allidoisfish]

Thanks everyone for all the replies!

Im new to Calguns and I think ill stick around for a while

[Allidoisfish]

It could be that there was a small void (caused by an airspace or impurity) in the metal, that the extractor claw cut has exposed.
But, not all extractor notches in barrels are cut by something like a milling tool.
Often, brutal as it sounds, a fixture is used to rigidly hold the barrel at an angle, then basically a chisel blade makes a single vertical strike down through the end of the barrel, forming the groove.
Sometimes a little extra metal is torn out during this operation, this may be what you are seeing.

On a .22LR you are probably OK, and if others have the same kind of mark, it's probably normal.

I got a reply back from Walther with a short answer. "this is a manufacturing point on the gun" Not sure what that means.

How sure are you that its safe to fire? Children will be firing this gun so I need to be sure its safe. Any input would be appreciated.

[marcopolo_9mm]

Did Walther explicitly state that it is safe to use? If not, ask them, and make sure you keep the email (complete with all headers).

[ojisan]

I got a reply back from Walther with a short answer. "this is a manufacturing point on the gun" Not sure what that means.

How sure are you that its safe to fire? Children will be firing this gun so I need to be sure its safe. Any input would be appreciated.

.22LR is fairly low pressure.
Look at how thin the chamber walls are on something like a NAA mini-revolver, which safely contains the pressure.
With all the metal around the chamber in your Walther, that void is not much to worry about.
I suspect that they use the chisel cut method.
It doesn't hurt to ask them for clarification, though.

[Allidoisfish]

.22LR is fairly low pressure.
Look at how thin the chamber walls are on something like a NAA mini-revolver, which safely contains the pressure.
With all the metal around the chamber in your Walther, that void is not much to worry about.
I suspect that they use the chisel cut method.
It doesn't hurt to ask them for clarification, though.

The void actually is all the way to the barrel wall, so thats why im concerned.

Maybe ill summit another customer service claim. hopefully I get a different agent, This agent doesnt seem to like questions. LOL

[jimbeezy]

i have that notch on mine and i've fired mine with out any issues thus far.

[805thRCTank]

Here is mine after more than 500 rounds.