AR Sponsor
Posted: 11/6/2008 7:37:47 PM EDT
| I'm having a problem with a brand new bolt carrier group. The firing pin retaining pin doesn't want to go back in. The prongs on it spread out once it's through the first hole, so it won't go into the hole on the other side. I've tried needle-nosed pliers but they're too fat to get in where I need them. Any trick to this? Or is there something wrong with the retaining pin? Thanks. |
|
You want it to have some spread to it. But with what you have described, you could use your needle nose pliers on the head of the pin, once it's in the first hole, line it up with the second and slowly rotate it with slight pressure to get it started into the other side. I
One thing to check for is any burrs on the tip of the pin too. It should have a slight angle on it. |
Well how it was spread before, the only possible reason I can see was that they wanted to keep me from assembling my bolt carrier. 
Seriously though, any downside to it being a bit loose? It doesn't fall out by itself when tipped on it's side or anything like that, but it's pretty easy now to pop out with a pen. |
|
Quoted: Well how it was spread before, the only possible reason I can see was that they wanted to keep me from assembling my bolt carrier.  Seriously though, any downside to it being a bit loose? It doesn't fall out by itself when tipped on it's side or anything like that, but it's pretty easy now to pop out with a pen. Well, I’m not doubting you when you describe the condition of your FPRP. All I can say is, through my personal experience, I’ve ran into FPRPs that seemed to not want to go in. Twisting the pin in a back-and-forth motion during installation has always worked. (This trick was first taught to me in basic training in 1985.) Your definitely not the first person to encounter this problem here on ARFCOM, and the above advice has always worked for others. After describing how you bent your FPRP, I personally would not use it, and would replace it with a new one. That is just my personal opinion. If you think the pin is still serviceable, use it. If it was my weapon, I wouldn’t want to run the risk of the pin vibrating out, causing a malfunction. |
|
Quoted:
Quoted:
Well how it was spread before, the only possible reason I can see was that they wanted to keep me from assembling my bolt carrier.
Seriously though, any downside to it being a bit loose? It doesn't fall out by itself when tipped on it's side or anything like that, but it's pretty easy now to pop out with a pen. Well, I’m not doubting you when you describe the condition of your FPRP.
All I can say is, through my personal experience, I’ve ran into FPRPs that seemed to not want to go in. Twisting the pin in a back-and-forth motion during installation has always worked. (This trick was first taught to me in basic training in 1985.)
Your definitely not the first person to encounter this problem here on ARFCOM, and the above advice has always worked for others.
After describing how you bent your FPRP, I personally would not use it, and would replace it with a new one. That is just my personal opinion. If you think the pin is still serviceable, use it. If it was my weapon, I wouldn’t want to run the risk of the pin vibrating out, causing a malfunction.
+1 My friend bought a new AR last week and first day I went over pulled the bolt assembly apart, oiled and for the life of me could not get the FPRP back in. I tried turning and turning till my fingers hurt like hell. My friend was looking at me like I tore his new rifle up. It finally went. First time home from the range, stripped, cleaned, oiled and pin just dropped right in NP. |
AR Sponsor