Description
The ROMEO-X SIG-LOC Pro by Sig Sauer is a pistol-mounted enclosed reflex sight built around the SIG-LOC mounting footprint for a low-profile, high-strength attachment to compatible slides. The design establishes five points of contact to resist shift in zero from recoil and impact while providing a longer focal length to reduce parallax and reticle distortion. The optic uses a fully enclosed optical system with distortion-free aspherical glass and a rugged housing intended for demanding duty and everyday carry applications.
Key Specifications
- The optic offers 1x magnification for a true non-magnified sight picture.
- The objective lens diameter measures 24 mm to balance window size and compact footprint.
- The overall length is 1.9 inches for a compact pistol profile.
- The deck height is 0.96 inches to allow standard-height iron sight co-witness.
- The sight weighs 1.46 oz to minimize added mass on the slide.
- Power is provided by a CR2032 side-load battery with an advertised long service life.
- Illumination is configurable with 15 settings (12 daylight / 3 night vision according to the manufacturer text).
- The housing is specified as 7075 aluminum with a fully enclosed optic for environmental protection.
- The sight is rated IPX-8 for waterproofing in accordance with the product text.
- The unit fits the SIG-LOC mounting footprint (SIG-LOC Pro) for slide-integrated installation on compatible pistols.
Built for repeatable pistol integration and a forgiving sight picture, the ROMEO-X SIG-LOC Pro is designed to meet the needs of users who require a robust, low-profile reflex sight on a duty or carry handgun. Its sealed optical system, compact dimensions, and SIG-LOC mounting interface make it suitable for range use, everyday carry setups on compatible slides, and professional applications where a secure, low-deck optic is preferred.
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