Porting of barrel only through existing window in slide, up to 4 ports.
Ports are 3/32" or 1/8" diameter depending on customer choice / caliber. 
 
Refinishing:
Select the desired finish for machined areas.  NOTE that stainless steel slides CANNOT be re-blued.  They will be left as-machined or will require full recoating (DLC, CrN, TiN, etc.). 
 
Rebluing is included in the price.  DLC/CrN/TiN are an additional cost. 
 
PLEASE READ SHIPPING INFORMATION HERE.