AR trigger pins falling out of timmney

[possumpacker]

i installed a 3lb timmney trigger in a s&w ar bout 2 months ago and really like it and have put a couple hundred rounds thru it since. yesterday after shooting i laid the gun down on the bench on its right side. when i picked it up both pins for the trigger assembly were laying on the bench and now wont stay in and will fall thru from either side. whats up?

 

[Bill B]

springs missing or backwards?
My first build I put the spring on backwards allowing the pin to walk right out of the rifle.

 

[Alpo]

Mismatched diameters? If not, get some KNS lockpins.

 

[TTB Yeee]

springs missing or backwards?
My first build I put the spring on backwards allowing the pin to walk right out of the rifle.

This. I put the spring in backwards as well on my first build.

 

[Alpo]

Timney's are sealed units. I assume you tightened the set screws according to instructions?

 

[Bill B]

Timney's are sealed units. I assume you tightened the set screws according to instructions?

oops, didn't know that.

 

[Mr Evilwrench]

I'll have to direct my son to this; I think it was a Timney he put on his 6.5, and he was having the pins fall out.

 

[matthewmaze]

just find a brand of locking pins you like.there are different size pins colt puts bigger pins in their semi lowers i am not sure if others do this

 

[Bfish]

^^ This is true, I was sent them instead of the regular (I ordered regular) on my last order from Palmetto...

I would look into some of the KNS pins kits or something of the likes just because they are cheap and nice to have anyways!