Why do people

[StuP]

have great big chunks of slide milled away ? Apart from inviting dirt and crud to jam the gun up, and unbalancing the recoil forces from original, what does it achieve ?

 

[Bonecollector]

adds another $200 to trade value.

 

[Mr. Goodbar]

Lighten up the gun

 

[offbeat404]

adds another $200 to trade value.