Archived Posts » 60,546,157
quick KNS pins question
6/16/2012 12:37:44 PM
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
6/16/2012 12:48:16 PM
Originally Posted By Woody600:
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
Th drawbacks are what cause the debate.
By not rotating, they create heat buildup in the weakest part of the link, the center. This is why the GEN1 pins failed so much. Since they are captive, you may not know they are broken, which leads to egging your pin holes.
To fix the problem in GEN2, they went to harder pins. Now they do not break as often, but if they do, the egging problem is worse as the pins are much harder and it is easier for them to egg the receiver.
Stoner knew what he was doing when he chose the design he did.
6/16/2012 2:20:30 PM
Originally Posted By RenegadeX:
Th drawbacks are what cause the debate.
By not rotating, they create heat buildup in the weakest part of the link, the center. This is why the GEN1 pins failed so much. Since they are captive, you may not know they are broken, which leads to egging your pin holes.
To fix the problem in GEN2, they went to harder pins. Now they do not break as often, but if they do, the egging problem is worse as the pins are much harder and it is easier for them to egg the receiver.
Stoner knew what he was doing when he chose the design he did.
Originally Posted By Woody600:
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
Th drawbacks are what cause the debate.
By not rotating, they create heat buildup in the weakest part of the link, the center. This is why the GEN1 pins failed so much. Since they are captive, you may not know they are broken, which leads to egging your pin holes.
To fix the problem in GEN2, they went to harder pins. Now they do not break as often, but if they do, the egging problem is worse as the pins are much harder and it is easier for them to egg the receiver.
Stoner knew what he was doing when he chose the design he did.
This doesn't make sense. How would the pins encounter that much heat?
ETA: Not meaning to hijack, OP.
6/16/2012 3:44:14 PM
Originally Posted By justin_schuyler:
This doesn't make sense. How would the pins encounter that much heat?
This doesn't make sense. How would the pins encounter that much heat?
Poor lubrication + full auto, I guess. All the more reason to pay attention to lubrication.
6/16/2012 4:59:29 PM
I haven't found a detractor yet. That said, it takes a lot of the grit feeling out of a mil spec trigger. Use em in all my builds.
6/16/2012 5:23:40 PM
I use them in my 50 BMG conversion because the hammer doesn't allow capture of the spring by the pin, so the hammer pin slid out all the time. I haven't see any issues.
6/16/2012 6:47:12 PM
We have been considering a set of these for my kids Multi use lower and will watch and see what the opinions are. His lower is used with his .223 upper and his CMMG dedicated .22 upper..Thanks
6/16/2012 7:51:52 PM
Originally Posted By Woody600:
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
http://www.ar15.com/forums/t_3_118/572876_KNS_pins_in_a_new_buid.html
See here. This may help you out in deciding whether to go ahead with the pins or not. I finally decided to install a set since I have a dedicated Full Auto receiver and it was worth the assurance it gives.
6/16/2012 8:15:02 PM
Well I was thinking they might be good as 90% of the use of his lower will be with the .22 upper. Of course the reamining 10% with .223 Thats the main reason we are considering them and are mostly concerned if they are hard on the lower or not...Thanks
6/16/2012 9:18:19 PM
There are no draw backs to KNS pins. Some of the ones mentioned here (Drawbacks) are rubish.
The only thing that I can think of is if something breaks in the field you need two allen head wrenches to take the trigger apart..
The only thing that I can think of is if something breaks in the field you need two allen head wrenches to take the trigger apart..
6/16/2012 10:28:18 PM
My spikes battle trigger felt noticeably more crisp without the kns pins.
6/16/2012 11:24:18 PM
Originally Posted By Rockyriver:
There are no draw backs to KNS pins. Some of the ones mentioned here (Drawbacks) are rubish.
The only thing that I can think of is if something breaks in the field you need two allen head wrenches to take the trigger apart.
There are no draw backs to KNS pins. Some of the ones mentioned here (Drawbacks) are rubish.
The only thing that I can think of is if something breaks in the field you need two allen head wrenches to take the trigger apart.
Would that be one of the "no draw backs"?
6/16/2012 11:24:30 PM
IMHO the only draw back is you need a pair of allen wrenches to pull the pins out. Compared to the standard trigger pins, which you can detail strip your gun without tools. KNS pins, you must keep allen wrenches handy, plus it takes 4 times as long to remove your trigger & hammer for service.
I run them in all my preban guns. I like the "finger rest", the look of them and I feel the pin holes can't wear bigger. So these are my reasons I use them.
I run them in all my preban guns. I like the "finger rest", the look of them and I feel the pin holes can't wear bigger. So these are my reasons I use them.
6/17/2012 12:19:14 AM
I used them with a timmey trigger so that I don't need to use the little allen screws that hold the trigger unit in place against the standard pins. I also like the look of the pins.
6/17/2012 1:03:51 PM
Screwing up a papered lower would certainly be a huge drawback.
The biggest drawback that I see for a more average shooter would the added complication and potential for losing small parts if a person had to pull the FCG in the field.
A breakage issue suggests a more frequent TI schedule even for light duty users.
The biggest drawback that I see for a more average shooter would the added complication and potential for losing small parts if a person had to pull the FCG in the field.
A breakage issue suggests a more frequent TI schedule even for light duty users.
6/17/2012 2:20:03 PM
I do not see how keeping 2 small Allen wrenches with my field spares kit (along with a couple other tools) would be considered a drawback. I'll also point out that I believe that KNS's pins are far less likely to break in the field than standard pins are.
I concur with the posts that note the improved smoothness of the trigger feel with a KNS kit. And since I got the kit for my SBR, it was kind of important to me to protect my NFA investment.
I concur with the posts that note the improved smoothness of the trigger feel with a KNS kit. And since I got the kit for my SBR, it was kind of important to me to protect my NFA investment.
6/17/2012 2:55:18 PM
Originally Posted By justin_schuyler:
This doesn't make sense. How would the pins encounter that much heat?
ETA: Not meaning to hijack, OP.
Originally Posted By RenegadeX:
Th drawbacks are what cause the debate.
By not rotating, they create heat buildup in the weakest part of the link, the center. This is why the GEN1 pins failed so much. Since they are captive, you may not know they are broken, which leads to egging your pin holes.
To fix the problem in GEN2, they went to harder pins. Now they do not break as often, but if they do, the egging problem is worse as the pins are much harder and it is easier for them to egg the receiver.
Stoner knew what he was doing when he chose the design he did.
Originally Posted By Woody600:
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
I do not want to debate their usefulness or lack thereof in semi-auto rifles. What I would like to know is if there is any drawback to using them (assuming you buy the proper size and install them properly), other than the money setback.
Th drawbacks are what cause the debate.
By not rotating, they create heat buildup in the weakest part of the link, the center. This is why the GEN1 pins failed so much. Since they are captive, you may not know they are broken, which leads to egging your pin holes.
To fix the problem in GEN2, they went to harder pins. Now they do not break as often, but if they do, the egging problem is worse as the pins are much harder and it is easier for them to egg the receiver.
Stoner knew what he was doing when he chose the design he did.
This doesn't make sense. How would the pins encounter that much heat?
ETA: Not meaning to hijack, OP.
Have to agree with this... Heat??? Nah. Also how would egging to the lower occur if the pins are held tight by the screws? They're not rotating, hence the name.
Their intended purpose is to keep trigger and hammer pins from walking out. Now if this issue is perceived or actual is always up for a lively debate.
