My trigger is acting up...

R4MBLIN WRECK said:
So I will still need to replace the "J" spring to prevent this from happening, again?
Click to expand...
Your hammer pin will keep on walking you. I read on this forum that the recent MP15-22 are having this problem. Get the KNS pin kit and call it a day.

Mine kept on walking like this until i put in the KNS.
862918_10200899853883249_1073518320_n.jpg
 
mp15.22 said:
Your hammer pin will keep on walking you. I read on this forum that the recent MP15-22 are having this problem. Get the KNS pin kit and call it a day.

Mine kept on walking like this until i put in the KNS.
862918_10200899853883249_1073518320_n.jpg
Click to expand...

Ah thanks for the pic that's how mine was looking before I pushed it back in for a second. I did get this 15-22 back in December 2012 so I guess mine is no exception. This helps so much. Thank you all for tips this is great.
 
OK, my opinion. You don't need the KNS pins. They are too expensive and are non rotating, which serves absolutely no purpose in this situation. Who cares if the pins rotate? JP makes pins & they cost less as you are not paying for the non rotating components.

Also, if while doing this you want a great trigger that any idiot (me) can drop in while you are putting these pins in, then get you a CMC trigger module. Pull out your old pins, take out all of the old trigger components, put in the CMC group, install JP pins... and you are done. You now have a match grade trigger that will stay locked in place.
CMC Triggers Tactical Drop-In Trigger Group Curved AR-15 Small Pin
 
RedNeck Jim said:
OK, my opinion. You don't need the KNS pins. They are too expensive and are non rotating, which serves absolutely no purpose in this situation. Who cares if the pins rotate? JP makes pins & they cost less as you are not paying for the non rotating components.
Click to expand...

If the J-spring is broken, there's nothing keeping the hammer pin from moving side-to-side. The KNS pins would keep it in place, but would only be a band-aid.
 
I still contend that the majority of the time, the problem is caused by repeated disassembly of the FCG every time the rifle is cleaned. In reality, the FCG in the 15-22 only needs to be disassembled if something breaks.
 
Majorlk said:
I still contend that the majority of the time, the problem is caused by repeated disassembly of the FCG every time the rifle is cleaned. In reality, the FCG in the 15-22 only needs to be disassembled if something breaks.
Click to expand...

Agreed... I have a little 1 gallon air compressor mounted under my work bench that i use to blow out my lowers with... No need to remove anything, just blow it out and your gtg.
 
My hammer pin keeps walking out on the right side. I've never removed the FCG and the problem started after about 500 rounds through the gun. My J spring is fine. I don't have the tools to clean up or recut the groove on the pin, so I finally just said screw it and bought the KNS pin set direct from KNS Industries. They should be here next week. I ordered the Gen 2 Mod 2 set.
 
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Gopher Slayer said:
If the J-spring is broken, there's nothing keeping the hammer pin from moving side-to-side. The KNS pins would keep it in place, but would only be a band-aid.
Click to expand...
The JP pins hold everything in place, just like the KNS. Someone will have to document where any AR type gun has had issues with a pin rotating. Think about how many pins are in an AR.

I think some of you guys just like having more stuff hanging off your rifle. :D
 
Majorlk said:
I still contend that the majority of the time, the problem is caused by repeated disassembly of the FCG every time the rifle is cleaned. In reality, the FCG in the 15-22 only needs to be disassembled if something breaks.
Click to expand...

Well I can assure you that I never took apart the FCG. The pin just started walking on its own.
 
TYSTYX said:
My hammer pin keeps walking out on the right side. I've never removed the FCG and the problem started after about 500 rounds through the gun. My J spring is fine. I don't have the tools to clean up or recut the groove on the pin, so I finally just said screw it and bought the KNS pin set direct from KNS Industries. They should be here next week. I ordered the Gen 2 Mod 2 set.
Click to expand...

How can you tell if your j spring is fine? So far it had been assumed that mine, but that's all speculation. I mean I fixed the problem by pushing the pin back in, but I'm still unsure if I have to replace the j spring or not.
 
The J pin is actually inserted into the hammer from the bottom. Sometimes they break where the bend is. Once that happens it usually falls out and the hammer pin has no way to lock in place.
 
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RedNeck Jim said:
The JP pins hold everything in place, just like the KNS. Someone will have to document where any AR type gun has had issues with a pin rotating. Think about how many pins are in an AR.

I think some of you guys just like having more stuff hanging off your rifle. :D
Click to expand...



Well, I figure that if owners can put on a 600+ dollar optic on their 15-22, or spend more than 20 cents per round for 22 ammo, then 33 bucks for the KNS set up isn't really that bad of a deal.
 
TYSTYX said:
Well, I figure that if owners can put on a 600+ dollar optic on their 15-22, or spend more than 20 cents per round for 22 ammo, then 33 bucks for the KNS set up isn't really that bad of a deal.
Click to expand...
Hey I agree but IMO both parts do exactly the same thing, so why throw your money away?

That is the exact same logic I used in buying the CMC drop in trigger. IMO, this gun (or at least my gun) needed a better trigger. I don't know a hammer from a sear or a j spring from a whatever that little thingie is. I'm just not mechanically inclined. I know folks, like the Major, can buy trigger components cheaper than my drop in, and have a nice trigger. Good for them & I wish I felt comfortable doing that myself. Reality is... I can't do that. I would put the wrong spring in the wrong place or something else just as stupid. However anyone can drop in a CMC & never have to worry about what goes where... plus you now have a match grade trigger.

To me, I want a fine gun, a smooth light trigger & a nice optic for my old eyes. Everything else is just gravy.
 
RedNeck Jim said:
The JP pins hold everything in place, just like the KNS.
Click to expand...

I didn't think you understood why someone would suggest something other than factory pins.

I wasn't arguing brand names or better designs. Guess I misread your post.


Personally, I would call S&W and tell them they should stop using these cheap FCG components if they want the 15-22 to keep a decent reputation. Then I would ask them to ship me a new hammer free of charge.
 
Gopher Slayer said:
I didn't think you understood why someone would suggest something other than factory pins.

I wasn't arguing brand names or better designs. Guess I misread your post.
Click to expand...

No problem. I use anti-walk pins on both my AR & 15-22. I personally don't see the need for non rotating & personally don't like the look of that bar connecting the 2 pins on the KNS. Besides that, they both do their job well.

FCG is just too important. I don't want my pins walking & I shoot much better with a match grade trigger. That combo is the first purchase I would make for any AR type weapon.
 
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