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NIB mp7, few questions ...


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#1 GenTarkin

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Posted 26 March 2013 - 02:17 PM

Im curious, which box design is the umarex branded one vs the KWA branded one? Mine is black and has big HK logo on top left, on the mid / right of box simply has in big white letters 'no compromise'

Also, upon pulling the mp7 outta the box I noticed its covered in tons of oil...lol, mainly the sliding stock rails are covered in it, but looks like that got all over the plastic of gun n such...so whats best way to clean this off and reapply lightly?(if even needed)

3rd, all functionality seems fine(havent test fired) but safety n trigger all seem to work. But, the fire selection switch doesnt have nice firm selection modes like the one in a store I handled did. Is there any way to tweak this?

Thats it for now.

#2 R_King91303

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Posted 26 March 2013 - 07:14 PM

To my knowledge box design was the same for KWA and Umarex; standard HK logo. The only way to tell the difference was the supplied warranty card and the serial # on the gun.

As far as the oil, a simple microfiber shop rag wipe down for the externals should suffice. Your primary concern with oil saturation really is just the hop-up bucking. As long as there isn't oil on it and you routinely de-oil it, you'll be fine.

Because removing the hop-up unit can be a pain with the MP7, a de-oiling approach I take is taking a clean microfiber rag, cutting a small patch (maybe 1/3" x 1/3"), threading (you might need a needle to thread the patch depending on how thick the microfiber is) & wrapping it around the cleaning end of the de-jamming rod, removing the stock plate & bolt assembly, insert the patch into the hop-up chamber, leaving it in for a min or so, remove. When done correctly this process basically acts like a sponge, the patch should be big enough that it puts pressure on the walls of the bucking, but not so big that it will damage the bucking when you insert / remove the patch.



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#3 GenTarkin

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Posted 26 March 2013 - 09:35 PM

thanks for the tips =) I did take the bolt out and inspect the oil situation, it seems the oil was in the right places internally, not too much in the breach area so, Im guessin hopup is fine. Most of it was on the bolt sides(where it should be afaik).
Also, have any thoughts on the selector switch?
It seems like the switch isnt loose per se, theres not much play between the selections.. rather it just seems like there is spring action between the selections... just notches... the one I held in store definitely felt like it had notches but a spring tension between them.

#4 kwaispro727

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Posted 28 March 2013 - 09:11 AM

As dumb as this sounds, take the selector switch off and put it back.  You will need a .89mm allen key (.9mm is supposed to work as well) to remove the tiny screw on the right side of the gun.  After taking my gun apart the first time when I put it back together the switch was a little stiffer.

#5 Chuck S

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Posted 29 March 2013 - 02:53 AM

The "KWA model" MP9A1 comes with the familiar white KWA owners manual; the "Umarex model" comes with a three color HK-looking Umarex owners manual. Both, of course, are KWA products.

An noted the real serial numbers are a different pattern.  As are the warranties.  The KWA is warranted for 45 days, the Umarex is warranted for a year.

-- Chuck




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