Prometheus AEG Gearbox Shim Set
Prometheus Shim Set
Airsoft Prometheus Shim Set. Super high quality metal shims, made in Japan. Perfect high-end mechbox shims for your airsoft gun. If you're upgrading your gun with some heavy equipment, we'd recommend the Laylax (Prometheus) shims set! Set includes all various thicknesses for any custom install you may be doing.