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Posted: 10/4/2020 10:54:03 PM EDT
Have a friend who does gunsmith work and swears by anti walk pins. He goes through 20 sets a month to fix customers' guns and I'm looking to retrofit my tribe of AR's - (too many to count.) I'd hate to have a hammer pin failure with a pin that broke. . .
Who makes the best and cheapest - in qty's of 20 they add up fast $440! Which of the options would you choose? Reference KNS - $22.  Gorilla - $9  PSA - $9  JP enterprise $16  |
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Posted: 10/4/2020 11:14:11 PM EDT
[#1]
Quoted: Have a friend who does gunsmith work and swears by anti walk pins. He goes through 20 sets a month to fix customers' guns and I'm looking to retrofit my tribe of AR's - (too many to count.) I'd hate to have a hammer pin failure with a pin that broke. . . Who makes the best and cheapest - in qty's of 20 they add up fast $440! Which of the options would you choose? Reference KNS - $22. https://www.rainierarms.com/media/catalog/product/cache/f356af1300088f34e63e2b0cffeb0768/4/4/44a7890e0d20b147bb97e82c16a9dbc6_1.jpg Gorilla - $9 https://www.gorillamachining.com/assets/images/thumbnails/DSC00289_thumbnail.JPG PSA - $9 https://palmettostatearmory.com/media/catalog/product/cache/7af8331bf1196ca28793bd1e8f6ecc7b/p/s/psa-custom-anti-walk-trigger-_-hammer-pins-nitride-116053.jpg JP enterprise $16 https://cdn-fsly.yottaa.net/53ff2f503c881650e20004c9/www.brownells.com/v~4b.10f/userdocs/products/p_452015028_1.jpg?yocs=p_ Not needed! |
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Posted: 10/4/2020 11:15:00 PM EDT
[#2]
I wanted to use the CMC set on the 15/22 because the factory pins are too short, and it drove me nuts. I bent that connector leg on one side just trying to install them. Seems like a chintzy design. I prefer to have the screws on both ends of the pin. I've used the PSA set on a couple of 80% lowers with less than perfect holes. I had no complaints with those, would recommend. Outside of those situations, I just use regular pins.
TLDR: Skip the KNS and get the PSA pins. |
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Posted: 10/4/2020 11:20:16 PM EDT
[#3]
Quote HistoryQuoted: Not needed! Unless he's running a drop in trigger. |
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Posted: 10/4/2020 11:41:12 PM EDT
[#4]
Quote HistoryQuoted: Unless he's running a drop in trigger. Quote HistoryQuoted: Quoted: Not needed! Unless he's running a drop in trigger. Don’t think he is... |
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Posted: 10/4/2020 11:44:08 PM EDT
[#5]
Waste of time and money if you're using milspec parts. They're a solution to a problem that doesn't exist for the vast majority of end users.
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Posted: 10/5/2020 12:14:44 AM EDT
[#6]
Anti-walk pins are the Fake News of the AR world.
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Posted: 10/5/2020 12:20:54 AM EDT
[#7]
Why?
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Posted: 10/5/2020 12:43:16 AM EDT
[#8]
Quoted: Have a friend who does gunsmith work and swears by anti walk pins. He goes through 20 sets a month to fix customers' guns and I'm looking to retrofit my tribe of AR's - (too many to count.) I'd hate to have a hammer pin failure with a pin that broke. . . Who makes the best and cheapest - in qty's of 20 they add up fast $440! Which of the options would you choose? Reference KNS - $22. https://www.rainierarms.com/media/catalog/product/cache/f356af1300088f34e63e2b0cffeb0768/4/4/44a7890e0d20b147bb97e82c16a9dbc6_1.jpg Gorilla - $9 https://www.gorillamachining.com/assets/images/thumbnails/DSC00289_thumbnail.JPG PSA - $9 https://palmettostatearmory.com/media/catalog/product/cache/7af8331bf1196ca28793bd1e8f6ecc7b/p/s/psa-custom-anti-walk-trigger-_-hammer-pins-nitride-116053.jpg JP enterprise $16 https://cdn-fsly.yottaa.net/53ff2f503c881650e20004c9/www.brownells.com/v~4b.10f/userdocs/products/p_452015028_1.jpg?yocs=p_ What actual problem are you trying to solve on your rifles? .mil guns and plenty of others go through many, many thousands of rounds without ever having to replace a FCG pin... |
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Posted: 10/5/2020 1:31:27 AM EDT
[#9]
Absolutely worthless IMO
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Posted: 10/5/2020 2:37:14 AM EDT
[#10]
I was going to ask why? We abuse our rifles. We don’t clean or lube them often enough. We do mag dumps for fun. We toss them on the ground. Etc. Never had a pin walk.
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Posted: 10/5/2020 2:38:37 AM EDT
[#11]
Bill said not to.
You should have Bill call you. |
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Posted: 10/5/2020 2:51:04 AM EDT
[#12]
If a gunsmith tried to upsell me a pair of anti-walk/rotational trigger pins I’d quickly find another gunsmith.
That said, for the rare occasion I do need a pair, I go with Squirrel Daddy. But most are likely fine. |
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Posted: 10/5/2020 3:50:51 AM EDT
[#13]
It's been a while since I've seen an anti-walk pin thread. I definitely would get a set for an Armalite AR-18/180 rifle but not for an AR-15.
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Posted: 10/5/2020 4:12:29 AM EDT
[#14]
Have you considered correctly installing your FCG?
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Posted: 10/5/2020 5:55:50 AM EDT
[#15]
Gimmick , if you have to buy them buy ones made in USA
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Posted: 10/5/2020 6:08:58 AM EDT
[#16]
I like them myself. Kns for the win.
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Posted: 10/5/2020 6:14:53 AM EDT
[#17]
Quote HistoryQuoted: Gimmick , if you have to buy them buy ones made in USA  Attached FileThis is the real reason hammer pins walk out. First time builder usually get the hammer spring installed backwards. |
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Posted: 10/5/2020 6:36:30 AM EDT
[#18]
I've yet to see a need for them personally.
A lot of guys running blowback or shorty rigs swear by them due to FCG pin breakage. |
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Posted: 10/5/2020 6:49:50 AM EDT
[#19]
I have one gun with the JP pins. They were about $10. Took me about $10 of my time to get the dang J-pin out of the hammer, and it’s not like I can just buy a J-pin by itself if I want to return to a standard configuration. Dumb “upgrade” in most situations.
The ones I used are the ones with an Allen screw on each side, I trusted the old style with an E clip in a groove on each side more. They were more difficult to install but seemed more secure. |
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Posted: 10/5/2020 7:33:28 AM EDT
[#20]
Quote HistoryQuoted: https://www.AR15.Com/media/mediaFiles/54857/image004_jpg-1620919.JPG This is the real reason hammer pins walk out. First time builder usually get the hammer spring installed backwards. Hammer pins? |
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Posted: 10/5/2020 9:49:47 AM EDT
[#21]
I use them ever since a oem pin snapped and part of it fell down into the lower and brought everything to a stop. It broke right along one of the indents and it was a factory DPMS rifle I bought off a buddy needing $. I know the odds of that happening again are almost zero, but I ain't taking that chance.
I am pretty sure all anti walk pins are machined, not cast, & make sure you use loctite on the screws. |
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Posted: 10/5/2020 9:54:15 AM EDT
[#22]
Quote HistoryQuoted: I use them ever since a oem pin snapped and part of it fell down into the lower and brought everything to a stop. It broke right along one of the indents and it was a factory DPMS rifle I bought off a buddy needing $. I know the odds of that happening again are almost zero, but I ain't taking that chance. I am pretty sure all anti walk pins are machined, not cast, & make sure you use loctite on the screws.  Standard pins are not cast. |
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Posted: 10/5/2020 9:55:08 AM EDT
[#23]
Quoted: Have a friend who does gunsmith work and swears by anti walk pins. He goes through 20 sets a month to fix customers' guns Your friend sounds like a huckster |
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Posted: 10/5/2020 9:56:40 AM EDT
[#24]
They are sometimes necessary, I needed them when I installed a velocity trigger which uses two set screws to add tension to the cassette style trigger group, the added tension was supposed to tighten the trigger but caused too much tension on the safety selector drum. $10 armaspec anti-walk pins fixed the problem perfectly.
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Posted: 10/5/2020 10:15:35 AM EDT
[#25]
I use them on my 3D printed receivers/guns that use AR FCG's.
But that's because the 3D printed plastic is a lot softer and the pins can indeed walk or slide out, even with the FCG springs riding in the grooves. Otherwise I've got a set of KNS on one build, just for cosmetics, and I was going for an all "matchy matchy" look in FDE on all accessories and controls on a build. I've never needed them in an actual aluminum factory AR lower. Even more cosmetic because I'm running a CMC cassette trigger on that build and it needs anti-walk pins even less. |
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Posted: 10/5/2020 10:20:34 AM EDT
[#26]
Quote HistoryQuoted: Unless he's running a drop in trigger. Quote HistoryQuoted: Quoted: Not needed! Unless he's running a drop in trigger. Still usually not needed. Some drop in triggers actually stipulate not to use them. They cause more wear on the trigger group parts since they are non rotating. |
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Posted: 10/5/2020 10:55:36 AM EDT
[#27]
Why?
Does your "gunsmith" friend understand how to assemble a lower properly? The trigger and hammer springs go in in a specific orientation. |
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Posted: 10/5/2020 11:03:53 AM EDT
[#28]
Two occasions where I use anti-walk pins:
-Drop in triggers that don't have a pin retention system. -Polymer or bare aluminum lowers, to minimize the opportunity for wear. I've used various brands. Right to Bear, Guntec, Amazon. All do the job. They aren't that expensive. Some people like them, some hate them... to each their own. |
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Posted: 10/5/2020 12:21:09 PM EDT
[#29]
Bought a few of the new Strike industry ones just to see what they looked like. Fairly simple to use as long as you set the link with something that won't scratch the lower finish. Have the spring grooves so I guess they should stay in a normal trigger group without the link installed. Bought a few brands over the years just to see what they were about but don't really use them normally.
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Posted: 10/5/2020 12:33:43 PM EDT
[#30]
Good information. I've seen them advertised and wondered if I was missing out on something.
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Posted: 10/5/2020 12:48:16 PM EDT
[#31]
Quote HistoryQuoted: Why? Does your "gunsmith" friend understand how to assemble a lower properly? The trigger and hammer springs go in in a specific orientation. This! |
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Posted: 10/5/2020 1:18:40 PM EDT
[#32]
In several decades of shooting AR15 and AR10 type rifles of various calibers, the only time I ever had a pin walk was when one leg broke off of a hammer spring. That isn't the fault of the pins though..it was a faulty hammer spring.
(FWIW, the hammer spring was installed correctly, it was an aftermarket spring for a "match" trigger/hammer group from a very well known supplier of "high end" fire control groups.). I haven't had any issue since replacing the spring with a mil-spec spring...although trigger pull is about .25 pounds heavier, so not a big deal. ETA: The biggest benefit I can think of is for a rifle that has lots, and LOTS of rounds through it, the anti-rotation pins can help keep the hammer/trigger pins from rotating and thereby wearing on the receiver. But, with all the rounds I have fired, I have yet to wear out a receiver because of enlarged hammer/trigger pin holes. |
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Posted: 10/5/2020 2:37:27 PM EDT
[#33]
Buy a decent trigger instead of those useless pins. Mbt2s ,Centurion AST or G .
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Posted: 10/5/2020 4:32:21 PM EDT
[#34]
Get either the Spike’s Tactical melonited KNS pins or order from KNS the model “G” set (which are melonited)
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Posted: 10/5/2020 4:48:11 PM EDT
[#35]
Quote HistoryQuoted: Still usually not needed. Some drop in triggers actually stipulate not to use them. They cause more wear on the trigger group parts since they are non rotating. A good portion of them have stopped using traditional pins entirely, and that's for a reason. CMC, Rise, and a few others use their own screw pins now to control walk. Others like the Elftmann use internal screws to tension the trigger pins. I have yet to use a drop in trigger that didn't walk on standard trigger pins. This includes an Elftmann with their tension system engaged, an old CMC, and a POF from before they started including anti walk pins. I don't use drop in triggers anymore, but if I did and it uses standard trigger pins, it's getting anti rotation pins. Majority of said examples now include anti rotation pins these days as they know their shortcomings. |
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