This uncaptured guiderod will fit 1.0 models. 

303 Stainless Steel, custom milled solid guiderod designed to fit all Wolff guiderod springs. This Guiderod is recommended for lighter loads or major loads.

Benefits Include

• The added weight of this guiderod will assist in providing equal energy disbursed for slide functioning.
• The rigid but smooth surface of this rod will prevent spring coils from binding and creating additional friction when the slide cycles.
• The additional weight of this .8 oz guiderod will help add additional weight to assist with recoil.
• Changing springs is easy