Fooped
Resident HK Guru
Hey Everyone,
Any thoughts on this? I was just finally gettting around to installing my Chip McCormick Super Match AR trigger group, and I made a boo-boo in doing so. Perhaps a BIG boo-boo:
In order to get the self-contained match trigger group into the lower, you have to remove the safety selector. Seeing that the selector was a pin-based switch like most everything else on the gun, it seemed clear to me that it should be drifted out from right to left so I could fit the new trigger group in. I looked on ar15.com and a few other places to see if there was anything else special I should do first, and found nothing.
So....Out came the punch and hammer, and I got the safety out, but not without ripping a 1/4" gouge out of the inside of the receiver wall! Apparently, there's a little detent pin that the safety selector rides on, that makes sure it can move to safe or fire, but nowhere else, and this pin was holding the switch in place! So when I started pounding, it came right through the wall of the receiver along with the switch!
After discovering this, I took off the pistol grip and realized that the little spring that fits inside the pistol grip goes up into a hole in the receiver that this little detent pin sits in. Wish I knew that before smashing away at the selector switch.
So my question is this: did I royally screw up my AR? I very carefully put everything back together, seated the selector switch, and function checked everything with no issues, and the pin still has a fair amount of metal holding it in the lower, along with tension from the spring pushing up, and the selector holding it down.
Also, putting IN the selector switch is easy (take the pistol grip off, remove the little spring, push the detent pin down, slide the selector in and put it all back together. But how do you remove the switch without damaging the receiver? Getting the detent pin out with the switch in seems impossible, and I found out the hard way what happens if you try to drift the selector out without dropping that pin.
Any advice would be greatly appreciated!
Any thoughts on this? I was just finally gettting around to installing my Chip McCormick Super Match AR trigger group, and I made a boo-boo in doing so. Perhaps a BIG boo-boo:
In order to get the self-contained match trigger group into the lower, you have to remove the safety selector. Seeing that the selector was a pin-based switch like most everything else on the gun, it seemed clear to me that it should be drifted out from right to left so I could fit the new trigger group in. I looked on ar15.com and a few other places to see if there was anything else special I should do first, and found nothing.
So....Out came the punch and hammer, and I got the safety out, but not without ripping a 1/4" gouge out of the inside of the receiver wall! Apparently, there's a little detent pin that the safety selector rides on, that makes sure it can move to safe or fire, but nowhere else, and this pin was holding the switch in place! So when I started pounding, it came right through the wall of the receiver along with the switch!
After discovering this, I took off the pistol grip and realized that the little spring that fits inside the pistol grip goes up into a hole in the receiver that this little detent pin sits in. Wish I knew that before smashing away at the selector switch.
So my question is this: did I royally screw up my AR? I very carefully put everything back together, seated the selector switch, and function checked everything with no issues, and the pin still has a fair amount of metal holding it in the lower, along with tension from the spring pushing up, and the selector holding it down.
Also, putting IN the selector switch is easy (take the pistol grip off, remove the little spring, push the detent pin down, slide the selector in and put it all back together. But how do you remove the switch without damaging the receiver? Getting the detent pin out with the switch in seems impossible, and I found out the hard way what happens if you try to drift the selector out without dropping that pin.
Any advice would be greatly appreciated!