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1/2/2010 6:37:02 AM EDT
What keeps the hammer pin from working it's way out?  Mine seems to have some play in it.  This is unlike the trigger pin which seems to be locked in place.

1/2/2010 6:46:25 AM EDT
[#1]
If you look through the pin hole in the hammer there is a little spring like thing in there....it is called a J-spring (i think). That's what keeps the pin in place.  It engages a groove in the center of the hamer pin
1/2/2010 7:05:34 AM EDT
[#2]
Quoted:
If you look through the pin hole in the hammer there is a little spring like thing in there....it is called a J-spring (i think). That's what keeps the pin in place.  It engages a groove in the center of the hamer pin


Thanks very much for the response....does it matter which way the pin goes in?  The pin is not marked the same on both sides.  Is it normal to have some play in the pin or should it be locked in place.  It does not take much from a tap of a puch to remove it.
1/2/2010 8:44:25 AM EDT
[#3]
Not sure if the specs let them have play but I do ot care for it. The ones I have bought  lately that had play were the ones with 2  "S" s on them. They were inconsistant in the j pin placement. some were tight some loose. Tried swaping hammer pin brands but that did not help.
1/2/2010 10:09:40 AM EDT
[#4]
Yeah,  It does not take that much force to push the pin out but that's the way is is.  It does move a small amount but if the J-pin is there you should be fine....shoot it and don't worry.  If you are super worried you can get a new pin and hammer and replace but based on what you have said your set up is normal.....
You can install the pin from either side.  If that's not enough you can but the anti-walk pins but I have no experience with that.
1/2/2010 11:22:35 AM EDT
[#5]
The hammer spring will hold it in unless it is going to be a very high round count rifle.  However, if it concerns you, buy the KNS Anti-Rotation pins.  I have the Gen 2 Mod 2 version and I like them a lot.  They probably aren't needed but they can't hurt.
1/2/2010 2:25:24 PM EDT
[#6]
Quoted:
Quoted:
If you look through the pin hole in the hammer there is a little spring like thing in there....it is called a J-spring (i think). That's what keeps the pin in place.  It engages a groove in the center of the hamer pin


Thanks very much for the response....does it matter which way the pin goes in?  The pin is not marked the same on both sides.  Is it normal to have some play in the pin or should it be locked in place.  It does not take much from a tap of a puch to remove it.


It matters.  The side with the grooves needs to be able to lock into the ring on the hammer spring.  Most of the time they are on the right side.
1/2/2010 2:50:23 PM EDT
[#7]
The hammer pin is retained by the "J" spring inside the hammer.  The TRIGGER pin is retained by one tail of the hammer spring engaging the groove on the end.

It matters which end goes in first.  Always start the pin with the smooth end, otherwise the "J" spring will catch the end groove and you'll have to whack the pin pretty firmly to get it past that.  I always install both hammer and trigger pins in the same direction so it's easy to remember which end to start them out with.

A "little" play in both pins is normal.  Too much play is a problem.  How much play, exactly, do you have?
1/2/2010 3:47:00 PM EDT
[#8]
Quoted:
The hammer pin is retained by the "J" spring inside the hammer.  The TRIGGER pin is retained by one tail of the hammer spring engaging the groove on the end.

It matters which end goes in first.  Always start the pin with the smooth end, otherwise the "J" spring will catch the end groove and you'll have to whack the pin pretty firmly to get it past that.  I always install both hammer and trigger pins in the same direction so it's easy to remember which end to start them out with.

A "little" play in both pins is normal.  Too much play is a problem.  How much play, exactly, do you have?


I guess it is not so much play...but you can feel one side of the pin sticks out just a little past the lower and you can push it back in flush with your finger.  When I push it in, of course, the other side comes out a little bit.  The previous poster says it does matter which way the pin goes in.  True?

1/2/2010 3:55:30 PM EDT
[#9]
Sorry. I thought I read it didn't matter.  Once it's in your GTG.
1/3/2010 6:30:57 AM EDT
[#10]
A lower I built for a friend just wouldn't hold the hammer pin in for some reason.  And I did try putting it in both directions.
  If you don't want to go the expense of the K&N pins (which I like and use) you can find over length hammer and trigger pins that are secured on either end by "C" clips.  I think they were $8 or so.
1/3/2010 6:34:15 AM EDT
[#11]
Quoted:
A lower I built for a friend just wouldn't hold the hammer pin in for some reason.  And I did try putting it in both directions.
  If you don't want to go the expense of the K&N pins (which I like and use) you can find over length hammer and trigger pins that are secured on either end by "C" clips.  I think they were $8 or so.


Thanks for the info...where can I find these K&N pins?

1/3/2010 6:43:54 AM EDT
[#12]
KNS pins can be had from Brownell's HERE
1/3/2010 7:56:08 AM EDT
[#13]
When you order from Brownell's check to see if you qualify for a 10% discount (military, LEO, etc).  They're a great company to deal with and very customer friendly.
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