3 Attachment(s)
AR-15 and M16 bolt bolt catch sequence
Most shooters will not notice, few collectors might notice the differences in this sequence of bolt catch variations. The first one(left) is very difficult to locate (there are even fakes for the retro people, but still easy to spot)Attachment 96470Attachment 96471Attachment 96472
2 Attachment(s)
Internal photos of bolt catch
The first bolt catch was rather thin and was soon replaced in production for both military and civilian service.
The modification added a much wider area to support the lower section of the bolt when
in the locked back position.
First photo shows the first bolt catchAttachment 96505Attachment 96506