The Sig Sauer Romeo Zero Mounting Kit allows you to attach your ROMEOZero to a Glock 43x/48x MOS or Springfield Hellcat pistol. This steel shroud helps protect your ROMEOZero red dot sight from impact and abrasive damage. FeaturesFits: SIG SAUER ROMEOZeroIncludes mounting screws DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.