For more information on how these numbers are calculated, please visit the Concealed Carry Factors information page. Using a sharpening stone, I slowly removed material from the bottom of the sight until it fits into the right side of the dovetail about 25% of the way and then drove it home from right to left. The Smith & Wesson Model 910 has earned the following ratings for concealability, firepower, and overall suitability for concealed carry by persons with a valid CCW permit. The rear sight height had to be reduced a bit to fit the dovetail (I believe this is normal). Be careful removing the rear sight there are springs for the mag disconnect and firing-pin safety under it. Installation was pretty easy but took a little time. The only problem is that now I want them for every gun I own. I have to say I love them! A huge improvement - significant in any or no light, and they dramatically improved my accuracy. I didn't think I needed night sights, but I knew I needed better sights and hoped that these would be an improvement. Trijicon night sights were the only replacements I could find for the "non-Novak" 915. Of my four semi-auto pistols, the 915 has always been my favorite, but lately my old eyes have had a hard time with the sights. I ordered the SA04Y set for my S&W 915 that I bought new in the early 80s. Buy with confidence that we stand behind the product we sell. At MSP, we only offer accessories from the most trusted brands like trijicon. The distinction between inferior quality and premium Night sight is undeniable. EVENLY DISTRIBUTED LIGHT FROM TRITIUM LAMPS -Įach Trijicon® tritium lamp is capped with a sapphire jewel that helps evenly distribute the light from the lamp and also acts as an additional layer of protection from puncture and cleaning solvents.Tritium gas lamps are contained within protective aluminum cylinders and have additional silicone rubber cushioning. ENHANCED PROTECTION FROM HEAVY RECOIL AND HARSH CLEANING SOLVENTS.White-painted rings around tritium lamps enhance user’s ability to see sight picture in bright-light shooting situations. Tritium phosphor-filled glass lamp provides battery-free glow, allowing for a visible sight picture in all lighting situations. INSTANTLY VISIBLE SIGHT PICTURE IN NO-LIGHT OR LOW-LIGHT SITUATIONS.Features of the Trijicon Smith and Wesson 915 sights: Green lamps are warranted for 12 years from the date of manufacture. Contained within aluminum cylinders for additional protection, the lamps are mounted on silicone rubber cushions to withstand shock and heavy recoil. Each lamp is capped with a sapphire jewel to help evenly distribute the light while protecting the lamp from solvents and puncture. Housed in a metal body and cushioned within silicone rubber, Bright & Tough Night Sights feature a unique shock-resistant design. Equally impressive, they do so with the same speed as instinctive shooting - and without the need for batteries. Trijicon Bright & Tough(TM) Night Sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. The SA04 is for guns made before Novak sights (before late 1989). Trijicon SA04: S&W 3 Dot Green Front & Green Fixed Rear Night Sights Binoculars, Monoculars & Spotting Scopes.