MP7 charging handle/mag issue
Posted 09 January 2013 - 09:53 AM
I bought the KWA MP7 around a month ago, and have now skirmished it twice in poor/cold conditions. Both times I had the same problem.
If i'm in my house, i pull the charging handle back, and let it forward, there is very little resistance.
If i put a mag in the gun, and charge the gun, it isn't as big of a "clank" as there is without the mag
If it is cold out, or sometimes in room temperature, the bolt seems to have too much friction to go forward, like it is not heavy enough.
THE PROBLEM IS
The bolt doesn't go all the way forward half the time (3mm), esspecialy in the cold. It picks up a round 100% of the time, but doesn't engage the gas valve or something on the mag, so if i fire, the trigger just clicks. I am using green gas. My other 2 friends with new mp7's do not have this problem. I guess im the odd one out. The bolt seems to be lubed fine, i don't know what to do. It's like the grease is almost cold and not sliding properly, help is much appreciated.
Posted 09 January 2013 - 01:53 PM
I've experienced the same thing with my MP7. What I found is that when you drop the bolt softly, the gun will not fire! I have not been able to understand why. But when I racked the bolt forcefully (like a badass), the bolt would go forward and the gun would fire just fine.
Put a little oomph into pulling the charging handle back. It will make you feel like a hardcore badass, but also will increase the likelihood that your gun will fire.
Posted 09 January 2013 - 03:47 PM
We teach the "smack your shoulder with your hand" technique. Pull back on the charging handle (or slide) hard enough that when it reaches the end of travel your hand is ripped off the handle and smacks your shoulder. Push-pull. Push the gun - pull the handle/slide. Exaggerated for sure but works.
Also wipe any excess lubricant off the bolt. Cold weather thickens oil and will affect operation.
Posted 10 January 2013 - 08:14 PM
Posted 11 January 2013 - 09:40 AM
Posted 11 January 2013 - 09:19 PM
Posted 25 January 2013 - 12:55 PM
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