This feature-packed slide assembly brings all the advantages of Sig's new ROMEO-X Pro optic and the trouble-free design of Sig's integrated expansion chamber together in one package. Enjoy the extremely low overall height of the fast-to-find, accurate ROMEO-X Pro reflex sight, providing co-witness with the included standard height iron sights. This no longer requires bulky, high-over-bore suppressor sights for co-witness. This slide also features Sig's Two Port Slide Integrated Expansion Chamber for recoil mitigation, allowing for quick follow-up shots. It does all this without the need for difficult-to-maintain traditional compensated slides. This field strip disas Mfg: Sig Sauer, Inc.