KNS anti-walk pins

realtree hunter

realtree hunter

New member
I've seen these on a lot of folks ARs what is the purpose. I have a couple ARs and have never noticed the trigger or hammer pins trying come out of a lower, is there some other purpose?
 
Are they the anti-walk, or the nonrotational pins? The nonrotational pins aren't really necessary in a lot of cases, but they are a good idea on M16 lowers and (completed) 80% lowers (without the hard coat anodizing). Hammer pins, especially, rotate, and will eventually wear out the pin hole. While the holes can be bushed to restore the usefulness of the lower, it's best to avoid the wear if possible.

Then again, a lot of people install them because they think they look cool.
 
I felt the difference immediately after installing them in my AR.

Do they make a difference in the immediate function of the rifle?
I'm not sure.

Did I realize after they were installed that the origional pins were rotating?
Absolutely.

I could feel the trigger pin rotate as I squeezed the trigger, and I can SEE the hammer pin rotate after the hammer falls.
 
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Well I have been shooting M-16's/AR's for over 25 years I have never needed them. If they were needed I think it's highly likely Eugene Stoner would have included them in the design. The US military has made 8 or more updates to the M-16 rifle during it's 50+ years of service and never saw the need for them.
 
Originally Posted By: NightvisionaryWell I have been shooting M-16's/AR's for over 25 years I have never needed them. If they were needed I think it's highly likely Eugene Stoner would have included them in the design. The US military has made 8 or more updates to the M-16 rifle during it's 50+ years of service and never saw the need for them.

NEED doesn't correlate to IMPROVEMENT either.

Just because it's not needed, doesn't mean it's not an improvement.

Military still uses a plastic POS grip...that most people throw away.
 
Originally Posted By: NightvisionaryWell I have been shooting M-16's/AR's for over 25 years I have never needed them. If they were needed I think it's highly likely Eugene Stoner would have included them in the design. The US military has made 8 or more updates to the M-16 rifle during it's 50+ years of service and never saw the need for them.

That's because the military just trashes the rifle when the lower receiver becomes unserviceable for any reason - including worn pin holes. There is a gage listed in the -23&P TM to measure hammer and trigger pin holes with. If they're worn, the rifle is condemned. While replacing an AR-15 lower ordinarily isn't a big deal (unless it's a pre-ban and you live in a commie state), replacing an M16 lower definitely IS a big deal.

Look at M60 Joe's website under Title I and II Repair, and you'll see how he (and others) install stainless steel busings to restore worn hammer/trigger pin holes. http://www.m60joe.com/
 
IMO its just more stuff to spend your money on. Not needed, If you have a full go M16 that has pins rotating during full go then by all means put them in. Other than that, knock yourself out with accessories until you run out of money.
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I have yet to see a service rifle with a good trigger. All my AR's are MUCH better with the after market parts in the trigger groups. JMO...
 

I have a Spikes Tactical .22 upper that would cause pin walking issues with my RRA lower when running suppressed. I know of one other PM member that has also experienced some pin walking issues with a suppressor.

I did not notice any pin walking issues with my .223 or 6.8 SPC when using a suppressor, but I now have KNS pins on all my lowers now since I always use one.
 
Originally Posted By: cbass16Originally Posted By: NightvisionaryWell I have been shooting M-16's/AR's for over 25 years I have never needed them. If they were needed I think it's highly likely Eugene Stoner would have included them in the design. The US military has made 8 or more updates to the M-16 rifle during it's 50+ years of service and never saw the need for them.

NEED doesn't correlate to IMPROVEMENT either.

Just because it's not needed, doesn't mean it's not an improvement.

Military still uses a plastic POS grip...that most people throw away.

I would agree with you.
 

Case in point. I have KNS anti-walk pins in two rifles set
up as HD/SHTF rifles, one in 5.56 NATO, and one in 6.8 SPC.
Anything I can do to these rifles, to make them more reliable,
I do. But I have two AR-15s, set up as hunting rifles, and
there I didn't think anti-walk pins where necessary. Fast
forward to yesterday on the range. I was running test loads
in four rifles, so I could keep shooting, while some rifles
cooled. I had a Win 70(300 WSM), a Savage 16(260 Rem.), a
AR-15(6mm WOA), and a LR-308 in the rotation. So about
half way through a group, with the AR-15(6mm WOA), the trigger
is frozen. Whiskey Tango Foxtrot! Then I see a trigger pin
sticking out of the mag release side of the lower. Gently
tap the trigger pin back in, and back to shooting, with a
mental note to include a couple more KNS anti-walk pin kits
in the next Joe Bob order!

Squeeze
 
Interesting thread and replies; I have had a set for awhile and never used them. A friend suggested the anti-walk pins were more for full auto applications.
I will put them on the thrash rifle and see if there is a noticeable difference.
 
The kns pins can add another safety net for drop in triggers like your timmney's.
If your set screws come loose in the trigger,the kns pins will save your butt!
Other then that,cool factor.
 
Who here has a vehicle with metal flake in the paint?

Why?

Rattle can over it if it serves no purpose, or STFU.
glare.gif
 
Originally Posted By: C.JayWho here has a vehicle with metal flake in the paint?

Why?

Rattle can over it if it serves no purpose, or STFU.
glare.gif


mama always said you was the smart one in the family.
 
Originally Posted By: SlickerThanSnot...mama always said you was the smart one in the family.

lol.gif


Try to convince my wife of that!!!
 
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