EvilMonkee Posted January 29 Share Posted January 29 Got a brand new KSC MP9 and am having the standard feeding issue of every other BB. What is the definitive solution as I have seen several and am not sure what the hell to do? Nozzle seems to want to stick in the hop unit and not move backwards. Its not the return springs as you can see them doing their job when it returns to the carrier. Any thoughts? It is very dry so going to try some lube when I can get to the store to buy some cd7a202e-940e-4cec-8c91-4463fdb2ccfb.mp4 Link to comment Share on other sites More sharing options...
MrTea Posted January 29 Share Posted January 29 @Ronin0033 is very knowledgable about MP9s. Bought mine from him and it's ran like a trooper. Link to comment Share on other sites More sharing options...
EvilMonkee Posted January 29 Author Share Posted January 29 26 minutes ago, MrTea said: @Ronin0033 is very knowledgable about MP9s. Bought mine from him and it's ran like a trooper. Thanks Calling @Ronin0033 Link to comment Share on other sites More sharing options...
Ronin0033 Posted January 30 Share Posted January 30 Hey! The nozzle “sticking” won’t be the feed issue, that is just showing it’s got a good seal with the hop rubber. The bolt movement will ensure the nozzle comes free so don’t worry about that. For only feeding every other shot I’d check the mag feed lips first. I’ve found with certain mags and certain BB brands the BB can get caught on the part where the mag lip meets the mag. Remove the mag lip (2 pins) and gently file down the around the yellow highlighted parts to make sure its not sharp & has no burrs. Also do any sharp parts around the top of the lip while you are there, MP9’s can chew BB’s a little when loading due to the metal lips. If it’s still misfeeding after that I’d try a different brand of BB’s just to make sure. I found Excels tended to be slightly too small for the mag tract and would jam themselves up…. bigM and EvilMonkee 2 Link to comment Share on other sites More sharing options...
EvilMonkee Posted January 30 Author Share Posted January 30 Thanks! I will sit on modding mags lips just till the weekend. A friend has the Vorsk and going to try his mags. I suspect you are correct though. I also think that cos of the cold there isnt enough power coming back to move the nozzle Link to comment Share on other sites More sharing options...
EvilMonkee Posted February 3 Author Share Posted February 3 @Ronin0033Well we got it working after lots of experimentation with mags and BBs, just needed lube and it not to be so fucking cold. Ironically I now have the opposite problem its feeding but not firing, ie a BB gets stuck in the hop unit. It fires intermittently. Must be the cold factor, I am going to shove a sign on it saying leave alone till Summer .... Ronin0033 1 Link to comment Share on other sites More sharing options...
ButcherBill Posted February 3 Share Posted February 3 57 minutes ago, EvilMonkee said: @Ronin0033Well we got it working after lots of experimentation with mags and BBs, just needed lube and it not to be so fucking cold. Ironically I now have the opposite problem its feeding but not firing, ie a BB gets stuck in the hop unit. It fires intermittently. Must be the cold factor, I am going to shove a sign on it saying leave alone till Summer .... Have you tried lighter bb's? Link to comment Share on other sites More sharing options...
EvilMonkee Posted February 3 Author Share Posted February 3 (edited) Everything from .25s upto .3s. It was firing fine yesterday at LAC on .28s, just on black gas. I have none to hand so its probably simply not getting enough juice. Edited February 3 by EvilMonkee ButcherBill 1 Link to comment Share on other sites More sharing options...
Ronin0033 Posted February 3 Share Posted February 3 KWA’s hop up is somewhat finicky, can’t say I’ve had BB’s getting stuck in the hop though. If you are keeping it long term I’d recommend the TNT Hop & barrel kit, it’s a game changer for the MP9, will easily hop .4 and more, plus easier adjustment. bigM 1 Link to comment Share on other sites More sharing options...
EvilMonkee Posted February 3 Author Share Posted February 3 yeh I am keeping it even though its unreliable currently. I had seen the hop units but going to wait a little before I get one as they are pricey Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now