NEW OLD STOCK SIG MCX Legacy Upper 5.56 Gen 1 – Complete Upper – Rare LVAW Clone Base
Up for sale is a SIG MCX Legacy Gen 1 Complete Upper in 5.56, one of the most sought-after foundations for an LVAW-inspired clone build. If you know the MCX platform, then you know the Legacy Gen 1 uppers are getting harder and harder to find, especially in complete configuration.
This upper includes the complete bolt carrier group, charging handle, and factory upper assembly, making it a true drop-on-ready setup for your MCX lower or clone project. The Gen 1 Legacy system is highly desirable for builders chasing the original LVAW / early MCX aesthetic, with the slimmer profile and classic Legacy design that made the platform famous.
Perfect for:
- LVAW clone builds
- Rare Gen 1 MCX collections
- Upgrading your existing MCX platform
- Hard-to-find spare complete upper assembly
The Legacy MCX uppers are discontinued, and complete examples like this are becoming increasingly scarce—especially for enthusiasts wanting the authentic LVAW base. Whether you're building out a premium clone or adding a rare MCX component to the collection, this upper is an outstanding opportunity.
Don’t miss your chance to own a discontinued SIG MCX Legacy Gen 1 complete upper—rare, collectible, and ideal for your next LVAW build.
