Springfield Custom shop , you may want a tirgger job to go along with it
1911-A1 Sights:
Install Springfield fully adjustable rear sight, dovetail front sight, w/3 dot tritium inserts ...$300.00
Install Springfield fully adjustable rear sight w/2 dot tritium inserts, in existing Bomar cut in slide ... $125.00
Install Springfield fully adjustable rear sight, forward mount, protected ... $200.00
Install Springfield fully adjustable low mount rear sights (does not include front sight) ... $175.00
Install Springfield fully adjustable low mount rear sight, deluxe cut (does not include front sight) ... $200.00
Install Novak low mount carry sights (Includes fixed rear, dovetail front) ... $180.00
Install Heinie low mount carry sights (Includes fixed rear, dovetail front) ...$180.00
Install Novak low mount carry sights w/3 dot or bar/dot tritium inserts (Includes fixed rear, dovetail front) ...$260.00
Install Heinie low mount carry sights w/”Straight 8” tritium inserts (includes fixed rear, dovetail front) ... $260.00
Install MMC adjustable sights ... $245.00
Install MMC adjustable sights w/tritium inserts ... $330.00
Install MMC adjustable sights in existing Novak sight cuts in slide .... $190.00
Install 3 dot tritium inserts in existing Novak sight cuts ... $135.00
Install tritium inserts in existing rear Novak sight; dovetail front sight w/tritium insert ... $165.00
Install dovetail front sight (Any style, includes cold bluing of sight cut) ... $55.00
Install dovetail front sight w/dot tritium insert (Any style, includes cold bluing of sight cut) ...$80.00
Install fiber optic front sight (dovetail) .... $70.00
Install Aristocrat Tri sight set or Aristocrat rib ... $300.00
Custom work sheet
http://www.springfield-armory.com/custom.php