AR Sponsor
Posted: 6/11/2007 2:33:27 PM EDT
 First time I've done this one. At the Delmarva shoot 10 June. Had a buffer retainer pin break in a AR. Maybe 500 rds of M193 ( GI LC) on a new build. Global Tactical lower sn. GT XX, Colt M4 16" upper, Rock River LPK and RR M4 stock with H2 buffer. The M4 stock was tight. Damn thing just broke So who makes a better/stonger buffer retainer pin? Is this common to M4's? Any other options?Thanks! 
|
|
Well, first off, the buffer should not contact the buffer retainer during rifle operation. If yours does, something is amiss. You should be able to run an AR without a buffer retainer. Only comes into play when you tilt the upper. It is possible that the buffer tube was not retaining it completely, and it came out and was broken by the carrier, or the carrier slot (bottom of carrier) is askew and caught the pin. When you install the next one, make sure you have good retention and that the carrier slot is clean. The tube should ALMOST touch the point of the stop. If you cannot adjust it to that point, then either get a new tube, or leave the retainer out. Option: Run the gun without it. Just remember it when opening it up, so the buffer and spring don't spontaneously unload from the tube. 
|
|
Many moons ago, well OK a few years ago I had the same thing happen. It was the buffer tube (receiver extension) contacting the retainer pin. I had to back the tube off one rotation back and buy a new buffer retaining pin to make it right. It was my inexperience in building it that caused the problem. Everything worked fine from that point on. ETA: you can run the gun without it; I did for quite a while until I could buy a new buffer retaining pin. Strange as it sounds (I know, its BRD) I ended up buying a whole new lower parts kit with an extra one thrown in and this led to another AR. |
| Like the other posters said you can just take it out, if you read the industry forum for Cavalry Arms they don't install that part at all. You just have to apply pressure when closing and opening the upper, it also keeps constant pressure on the carrier. This should also be quieter since they aren't bumping into one another. |
|
Put a new retainer in the same day. Just never broke one before. Didn't know if the early Globals had issues... I'll check the bottom of the bolt carrier for hit marks. Yes, I know you don't need the retainer to shoot.. But when the tip of it goes in the sear/trigger and stops your gun. Well, I don't need that to happen again. Thanks for the imput |
AR Sponsor