AR-556 Question

[gunpoorboy1]

There are two pins left of the safety selector and the bolt release on the left side of the rifle.

The pin closest to the bolt release keeps falling out.

Has anyone else had this problem?
Do I need to just replace the pin, and if so, where do I find them. I've checked the Ruger Store and can't find them there.

I hate to go to the expense of a Smith so any help would be appreciated.

 

[Pscipio03]

Are you referring to the trigger pins? If they are backing out the holes may be out of tolerance and the pin is coming out when firings. Or possible the pin is too small.
I’d buy a new pin and install it first. If it still keeps backing out you can get some anti-walking pins. All are installable with about 10 min of YouTube watching and a punch

 

[knockonit]

most trigger pins have a groove so springs keep in place, perhaps, something is amiss, and of course you can buy some anti walk pins which are mechanically fastened. (ie screw caps ect) i'd investigage installation of pins first

 

[YNOTAZ]

Take 3 pictures, left & right side of rifle, and down into the trigger assemble. make sure the last one is clear and shows the hammer spring. Comment on when the pin falls out, while shooting or when assembled. What brand rifle and aftermarket or factory trigger.

You will likely get your answer here without a smith. Worst case you will get a request for another picture.

 

[delta6]

As YNOTAZ said, send us this picture of your rifle.

 

[storage_man]

YEP both Delta6 & YNOTAZ will have this one covered. How do I know, I did it too !

 

[muta4warrior]

There are two pins left of the safety selector and the bolt release on the left side of the rifle.

The pin closest to the bolt release keeps falling out. I'm assuming you are referencing the hammer pin.

Has anyone else had this problem?
Do I need to just replace the pin, and if so, where do I find them. I've checked the Ruger Store and can't find them there.See below

I hate to go to the expense of a Smith so any help would be appreciated.

Check your pins, they should have a groove in the middle and at least one groove on either end (or both). If the pins have the grooves, check the hammer to see if the "J" spring in the hammer is present (that is what the center groove is for and keeps the pin from walking). If you are using a drop in trigger unit you will more then likely need a KNS pin kit.

 

[freefly]

The pin closest to the bolt release keeps falling out.

That would be the hammer pin (not the trigger pin). If that's the case (and the trigger pin isn't walking as well), any further pictures probably wouldn't help, as the most likely cause is the internal J-spring inside the hammer barrel. It's either broke / missing or doesn't have enough tension / protrusion.