For Owners

• Z-Flex^® Models and Components
• Installation / adjustments
• Maintenance
• Warranty information

Z-Flex^® Models and Components

At this time 2^nd Sight Gun Sights offer three models of Z-Flex^® sights:
Flip-Up Sights
Fixed-Base Sights
Low-Profile Combat Sights

Z-Flex^® Flip-up Sights

Z-Flex^® Flip-up sights encompass several components: The rotating Aiming Aperture with integral luminised brackets; the base unit with integral dovetail machined to fit specified brands of weapons; mounting screws that attach the Aiming Aperture to the base unit that allows the Aperture to swing forward and backwards; and torsion springs which cause the Aiming Aperture to return to the upright position whenever it is nudged or bumped out of position – such as upon drawing or re-holstering the weapon.

The Aiming Aperture is designed with two aiming capabilities within one component: the two luminised aiming brackets literally frame the shot at close or combat distances (typically under 25 feet). The Aperture also has a traditional notch-and-dots configuration when it’s necessary to make a carefully placed shot. The dots on either side of the notch help orient the shooter’s aim for a traditional three-dot sight picture.

The brackets and dots are luminised with specialized pigments called Super-Luminova^® which, when illuminated, provides shooters with the capability for fast, accurate orientation on target whether in bright light or low-light conditions, including total darkness!

Super-Luminova^®, when activated by sunlight, flashlight, and even UV (black) light sources, glows up to five times brighter than Tritium sights. Once exposed to a light source for approximately 30-60 seconds the luminised components provide a bright after-glow for up to six-eight hours. We tested these sights ourselves and found the sights remained highly illuminated throughout the night and into the early hours of the next morning. Over the course of a night shift a simple re-charge boosts the highly reactive pigments indefinitely; Super-Luminova^® does not deteriorate or diminish over time, but can be continuously luminised for years to come.

We believe that personal defense weapons equipped with luminised Z-Flex^® sights will provide you with fast, accurate sighting capabilities in the event of a home invasion in the middle of the night.  The sights were immediately discernible in complete darkness; the sights simply "jump out" at you and help orient the weapon on target.  There is no need to look for the three-dot alignment or to see if the front post is centered within the notch.  The luminised brackets literally frames the shot so you can get on target as quickly and accurately as possible.

Z-Flex^® Fixed-base Sights

The Fixed-base sight encompasses the luminised Aiming Aperture with the integral base/dovetail configuration, which is produced from a single piece of metal. This results in an extremely strong unit that is always ready for action.

Fixed-base sights are intended for those who prefer their luminised sight to always be in the upright and ready position; it’s for shooters who are not concerned whether the Aiming Aperture folds or gives way if bumped when holstering the weapon.

Fixed-base sights, in our opinion, are ideally suited for competition shooters, those concerned with home defense, and new shooters entering the sport who want to quickly and easily master acquiring a good sight picture. And, too, we’ve found that the fixed-base configuration makes it easier to rack the slide on pistols by acting as a sort of “charging handle.” We find that laying your free hand on top of the slide and pressing rearward against the upright Aiming Aperture helps rack the slide without having to grip the pistol’s serrations, thus giving you a more positive means of arming the weapon.

Z-Flex^® Low-Profile Combat Sights

Low-Profile Combat sights were designed as a no-snag unit for those concerned with a gun sight that does not interfere with drawing or re-holstering the weapon. Low-Profile Combat sights are produced from a single piece of metal as well and incorporate our signature luminised brackets as the primary sighting component.

Shooters will find that the brackets literally “hug” the front post when taking careful aim, but also capable of fast, reflexive shooting when threats at close-quarters negate the ability to take aim, but instead requires more of a reflexive/point shooting response.

The Low-Profile Combat design is 2^nd Sight’s response to Law Enforcement’s request for a low profile design that fits all standard holsters including Security Level I, II, and III holsters as required by many departmental directives.

Installation / Adjustments

Z-Flex^® sights are designed as a “drop-in” unit so shooters can install Z-Flex^® sights themselves. No permanent modifications or gunsmithing is required to fit your Z-Flex^® sight to the weapon.

• Remove the stock rear sight from the weapon.
  • This may require the use of a specialized tool designed to remove the rear sight from your particular weapon.
  • Check the owner’s manual for your particular weapon to determine the proper methods for manually removing the stock sight.
• Insert the dovetail into the notch and center Z-Flex^® on the slide.
• Tighten the two set-screws using the supplied 1/16 inch hex wrench.
• NOTE: We strongly recommend that shooters use a thread locking compound such as Loctite^® to secure the Z-Flex^® to the weapon to keep the screws from backing out under heavy recoil or from extensive shooting.
• If you find your shots are hitting too far to the right or left, simply loosen the set-screws and slightly drift adjust to re-position the Z-Flex^® sight to achieve the correct alignment. Z-Flex^® sights adjust for windage only and not for elevation.

Maintenance

Z-Flex^® sights are easy to maintain requiring only normal cleaning when servicing your weapon.

• For all models of Z-Flex^® ensure the set-screws are tightly secured in the base. Utilize a thread-locking compound to ensure a secure fit.
• DO NOT use bristle brushes, such as copper, brass, or stainless steel, to brush the luminised brackets and dots. Use a soft cloth and standard cleaning solvents or even soap and water to clean the luminised portions of your Z-Flex^® sights.
• Apply a light coat of lubricant as you would for your weapon.
• For the Z-Flex^® Flip-up sights, ensure all debris is cleared from around the hinge points so that the torsion springs can freely rotate forwards and backwards.
• DO NOT attempt to remove the two side screws from the Z-Flex^® Flip-up sight. These bolts retain the torsion springs within the “pockets” machined into the Aiming Aperture and should not be removed. However, check periodically to ensure these screws are tight. If loose, apply one or two drops of the thread-locking compound allowing the liquid to “wick” onto the threads and tighten the screws to ensure they remain securely in place.

Warranty Information: 2^nd Sight Gun Sights Warranty Policy:

All Z-Flex^® gun sights are proudly created here in the USA. Our goal is to provide the best quality products to serve the immediate needs of Law Enforcement, the Military, Competition, and the Civilian shooting communities. 2^nd Sight warrants every product to be free from defects in materials and workmanship under normal use for a period of one year from the original date of purchase.

2^nd Sight will promptly repair or replace (at our discretion) any product which is defective in material or workmanship without charge to the customer. All costs associated with product shipment to and from our facility remain the responsibility of the owner. Shipments to and from 2^nd Sight must be prepaid and insured.

Warranty service requires a valid Return Authorization Number (RAN) before returning products to 2^nd Sight. To obtain a RAN, please contact 2^nd Sight Gun Sights either by phone at (301) 529-8443 or via email at info@2ndsight-gunsights.com during business hours (Mon-Fri, 0900 – 1600 hrs, EST). A representative will contact you to ascertain the details regarding the defective product, provide the owner with the return authorization number, and prepaid shipping instructions.

For any warranty and/or non-warranty work, please return product to the location specified below along with a copy of your receipt. When returning products to 2^nd Sight remember to add sufficient insurance coverage in the event the package is lost or otherwise misdirected.

Warranty service is not extended to nor does it cover defects or breakage as the result of improper handling or use, including abusive or destructive handling, improper installation by customers or other entities, improper maintenance, abnormal use and/or alterations. 2^nd Sight Gun Sights LLC shall not be liable for any damages, including loss of profits, loss of savings, or any other incidental or consequential damages arising out of the use or inability to use our products.