SIG-LOC

SIG-LOC™ PISTOL OPTIC INTEGRATION REDEFINED

SIG-LOC™ provides the industry’s strongest, most rigid, interface between your optic and pistol slide

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SIG-LOC™ (Leverage Optimized Connection) is an innovative mounting footprint that establishes five points of contact between the slide and optic to eliminate shift in zero created by extensive shock from recoil and harsh impacts.

STRONGEST LOCKUP

Leveraging five points of contact, SIG-LOC™ creates the strongest lockup in the industry

MAINTAIN ABSOLUTE ZERO

SIG-LOC™ eliminates the potential for a shift in zero as the result of extensive recoil shock and harsh impacts to the optic housing.

CO-WITNESS STANDARD IRONS

Boasting the industry’s lowest deck height, SIG-LOC™ optics can be co-witnessed with standard height iron sights.

LONGER FOCAL LENGTH

Bottom-mounted screw design allows for a longer focal length to drastically reduce parallax and reticle distortion

THE EVOLUTION OF SIG-LOC™

The SIG-LOC™ system was first concepted during the development of the ROMEO-M17, revolutionizing pistol-mounted optic integration with a low-profile, ultra-tough connection between the optic and pistol slide. Designed for precision and strength, SIG-LOC™ ushers in a new era of expectation and performance for civilians and professionals with unmatched durability. With SIG-LOC™, you’re investing in technology that has been vetted and trusted by the most demanding users in the world, ensuring superior accuracy and reliability in every situation.

MILITARY-GRADE PRECISION:TECHNOLOGY FOR EVERY SHOOTER

The SIG-LOC (Leveraged Optimized Connection) system, first introduced with the military-grade ROMEO-M17 optic, revolutionizes optic mounting with a low-profile, secure connection between the optic and pistol slide, allowing for precision and co-witnessing with standard-height iron sights. Now available to civilians and professionals, it offers unmatched durability and performance in both competitive and tactical environments. With SIG-LOC, you’re investing in technology trusted by the military, ensuring superior accuracy and reliability in every situation.

How To Tell If Your Pistol Slide Is Compatible With A SIG-LOC™ Optic

Are SIG-LOC™ Slides Compatible With Non-SIG-LOC™ Optics?

SIG-LOC™ slides are compatible with both SIG-LOC™ and non-SIG-LOC™ optics, allowing you the flexibility to use your preferred optic without sacrificing performance.

HOW TO MOUNT

STEP 1 - REMOVE SLIDE AND SLIDE ASSEMBLY

Remove the slide from the firearm. Consult your firearm's Operators Manual for field stripping instructions.

STEP 2 - INSERT OPTIC ONTO PISTOL SLIDE

Insert front wedge of sight into cutout in slide. Set sight onto slide ensuring front recoil lug seats in front hole and rear recoil lug seats in rear hole of slide.

STEP 3 - INSTALL OPTIC MOUNTING SCREWS

Degrease optic mounting screw threads then apply Loctite 243 to the threaded mounting holes in the bottom of the optic housing. Using a T8 Torx install new optic mounting screws through slide into optic housing then tighten to 18 in-lbs (for SIG-LOC COMPACT) or 20 in-lbs (for SIG-LOC PRO). CRITICAL: After installing optic screws, allow Loctite 243 to cure for 24 hours before shooting the firearm.

STEP 4 - CONFIRM ALIGNMENT AND ZERO OPTIC

Ensure that optic is seated on pistol slide properly and proceed to zero optic using the windage and elevation adjustments to align Point of Impact with Point of Aim.

For a more detailed guide, please download the manual by clicking here.

FAQs

SIG-LOC: PRECISON MOUNTING REDEFINED

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COMPATABILITY

How To Tell If Your Pistol Slide Is Compatible With A SIG-LOC™ Optic

SIG-LOC™ slides are compatible with both SIG-LOC™ and non-SIG-LOC™ optics, allowing you the flexibility to use your preferred optic without sacrificing performance.

Are SIG-LOC™ Slides Compatible With Non-SIG-LOC™ Optics?