I have an m&p40 and quite often, the gun will jam up when cocking it back. The bullets don't go high enough to feed through. I've tried different magazines and they'll all do it. Now, I've never once had any issue out of all the times when I shoot it. It's just the first bullet getting chambered that does it. Pulling the slide back super fast and pushing it forward helps. But shouldn't it be easy to chamber a round? I have most of the apex tactical parts installed by the way. Is there another part I could get to make sure it never fails?
Problem Loading Pistol
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Jaysq
US Veteran
It sounds like you are riding the slide ?? The best way is to pull it back and turn it loose like a slingshot.
Bkreutz
US Veteran
Yes, they need to be cleaned and lubricated occasionally. Did you clean it back in November? If so, what (if any) lube did you use? There are a bunch of scenarios that I can think of (spiders made a nest in there?) but I'd suggest cleaning and lubing it per the owners manual and then try it again. Sure sounds like the slide doesn't want to freely move forward.
bobelk99
Member
See post #4 (please)
jimmib
US Veteran
if you read the manual it suggests cleaning it before firing it the first time and then it is up to you how often you clean and lube it...I clean mine after every use as I don't want your situation at that moment when I need my CC the most...life is a learning thing as we go through it...clean it...lube it and enjoy it....
Posted in several places around the LAPD range are signs admonishing, "OIL YOUR SLIDE OR YOU MAY DIE."
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Perhaps you should properly put back in all of the factory parts and see if it works. The answer may surprise you.
Jaysq
US Veteran
As others have said...it should have been cleaned and oiled before shooting. 
Mine was full of oil and lube when I broke it down. So a good cleaning would be in order and only oil the points listed in the manual. Your problem may not be the lack of oil, but too much.
Mine was full of oil and lube when I broke it down. So a good cleaning would be in order and only oil the points listed in the manual. Your problem may not be the lack of oil, but too much. 
smokindog
Member
So I guess I'm curious. This thread (to the post before mine) begins and ends with a post from you 12 hours apart about this issue but still no indication if you've actually cleaned the weapon and resolved the problem. I can only speak for myself but I'd be really anxious to know if it were mine 
Closure man, some of us need closure 
Closure man, some of us need closure Haha I went out last night and went to bed. And I don't think I have any oil left in the house or not. I'm pretty sure it got used up on antique rifles from my grandpa
Yep...I'm all out of all cleaning and oiling supplies. What do you guys recommend for both? I doubt the gun is really dirty, but i'm sure it's in desperate need of oil after sitting so long (I had to sell it to pay bills, but then bought it back just recently)
Yep...I'm all out of all cleaning and oiling supplies. What do you guys recommend for both? I doubt the gun is really dirty, but i'm sure it's in desperate need of oil after sitting so long (I had to sell it to pay bills, but then bought it back just recently)
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AR-Getsome
Member
CLP, frog lube, M-Pro7. They all work well. CLP and M-Pro7 can be found at wally world. Frog lube at your local GS or online.
Well I thought that fixed it, but it only made it a bit better. It's just the first bullet to be chambered gets stuck. If I drop the mag and eject it, every other bullet loads fine then it stays working properly for a while. There's no specific way I pull back the slide that makes it happen either
Jhm4040
US Veteran
First round jam
I've had the same problem. I found that if the top round in my magazine is angled slightly upward, it feeds properly.
If the top round is lying flat, I pull down the load assist button and let it go. This tends to put the top round in the correct position.
Anybody else notice this effect in an mp22lr?
I've had the same problem. I found that if the top round in my magazine is angled slightly upward, it feeds properly.
If the top round is lying flat, I pull down the load assist button and let it go. This tends to put the top round in the correct position.
Anybody else notice this effect in an mp22lr?
Bkreutz
US Veteran
What happens if you load a full magazine with the slide locked open and then release the slide?
Safety while fiddling
While trying to diagnose a problem like this I recommend you use snap caps-and put live ammo in another room-also, as you slowly let the slide close-watch the snap cap as it moves up the feed ramp-you'll probably spot the problem-
While trying to diagnose a problem like this I recommend you use snap caps-and put live ammo in another room-also, as you slowly let the slide close-watch the snap cap as it moves up the feed ramp-you'll probably spot the problem-
Bkreutz
US Veteran
This thread is about a M&P .40, the 22 is an entirely different pistol (but yes, I've had that experience with my P22 which is the same pistol)
It's gone both ways trying it like that
Every time the bullet gets stuck before chambering, it goes nose up, so it seems like it needs to lay flatter. But Idk. I'll keep messing with it and see if what you said is the problem
Coastie762
US Veteran
What brand and type of ammo are you using (truncated cone FMJ, hollow points, etc)? Have you tried another brand or type?
If not, that may be something for you to try.
If not, that may be something for you to try.
I realized it happens under one condition. If the trigger has already been dry fired. If I cock it with no magazine, then put one in, it works fine. It's something about having the trigger dry fired first that causes this to happen
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