The picture I added was of a Glock slide that has machining just for looks. As an example. As ZeusEcho helped with a photo of the 5.25, you'll see the machining is just for function. I wish they would have made it look a little better.
.45acp, .40 S&W, 9mm, .38 Spl, .380 acp, 22lr
12 gauge, .223/5.56x45mm, 30-30 Winchester
2 Chron. 7:14 Christians must seek His face