Please do not take this the wrong way. Go back and look at some of your posts as it relates to the AR FOW. Look and see if there is a pattern there.
Do not worry about little stuff like this. A buffer retainer pin will last a long time as long as the weapon is assembled properly, quality parts are used and the weapon is not abused. The only time I have replaced them is when there was a lack of operator headspace.
Originally Posted by zippygaloo
The buffer retainer looks like a very easy part to break. Has anyone ever broke a buffer retainer? Will an AR still function without a butter retainer?