Buffer retaining pin failure - HELP

[jiminyfixit]

Three times now my buffer retaining pin and spring have popped out of the lower and flopped around in the trigger assembly. This last time it happened while I was just dry running it before cleaning. Any ideas of what I'm doing wrong?

[farnorcal]

Are you threading the buffer tube all the way in until it partially covers the pin? That's what should be holding it there

[ojisan]

^ this.
Screw the buffer tube in just far enough to keep the pin from popping out while still allowing it to move up and down.

[m16]

Your receiver extension isn't threaded in far enough.

Easily fixed with a castle nut wrench.

[farnorcal]

uploadfromtaptalk1378145988833.jpg

You can see the tube holding it here if you look close

[jiminyfixit]

Thanks guys. That is obviously my issue. Sometimes you just need a slap in the back of the head to get straightened out.


This is why I love Calguns!!!

[MrPlink]

Is your castle nut staked?

[Jaybird]

Also an easy but pricey fix for that would be a PWS enhanced buffer tube. Has an extended lip to really hold that retaining pin in place. Think it really benefits gas piston systems too which PWS uses in their rifles. Threw one in the LWRC and it feels much more solid now. A nice upgrade for any rifle. Kinda weird that Riflegear sells them cheaper than PWS does. And it eliminates the castle nut so no staking to worry about.

[jiminyfixit]

I just installed a new mil spec buffer tube and did not install correctly. Simple and stupid mistake.

Thanks again for the help.