Prometheus EG Upgraded Spring Guide for SIG SAUER Proforce MPX

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Features High quality steel-reinforced body Provides ease of mind and reduced friction on your spring Ball bearings for reduced stress Easy drop-in installation for an immediately smoother operation for your gearbox Manufacturer: Prometheus Specifications: Compatibility: SIG SAUER Proforce MPX Airsoft AEG SMGsMaterial: Aluminum Alloy, Steel Show more