Hi All,
I just received my Bren 2 MS Carbine yesterday and am familiarizing myself with it.
Anyone know what the small aluminum rectangular insert on the side of the magwell is for? An image *should* be associated with this post.
I've done some searching and haven't found anything. I have noticed that it doesn't appear on all lower receivers as well.
I could speculate but actually knowing is the name of the game here!

Thanks!
