The ZRTS Ultimate Performance Package includes everything you need to upgrade your GSG or Sig Sauer 1911-22. It comes with a full length guide rod, slide alignment cone (SAC), bushing, spring & plug. This package is designed to improve the performance of your GSG & Sig Sauer 1911-22 pistol. The bushing and SAC are fitted together before shipping.

ZRTS are the only ones who swiss turn a one piece guiderod that can never separate.  All steel construction adds weight and reduces split times.  Stainless busing replaces zinc die cast factory unit that is prone to breakage.

Oversized spring is much more reliable and doesn’t bind like the factory spring.