Crimson Trace Lasergrips CTLG 105Grip GUN FIT:Smith & Wesson Model 642 Improved Internal Lock Mechanism: Offers OPTION:Viper MSS Improved Internal Lock Mechanism: Offers enhanced tamper resistance and seamless operation UPC MPN SKU COLOR SIZE 690104445250 4324002 TSP 4324002 Hi Vis Yellow 2XL 690104445281 4324005 TSP 4324005 Hi Vis Yellow 3XL 690104445298 4324006 TSP 4324006 Hi Vis Yellow 4XL 690104445335 4324010 TSP 4324010 Hi Vis Yellow 4XL 690104445328 4324009 TSP 4324009 Hi Vis Yellow Large 690104445274 4324004 TSP 4324004 Hi Vis Yellow Small 690104445311 4324008 TSP 4324008 Hi Vis Yellow X Small 690104445304 4324007 TSP 4324007 Hi Vis Yellow XL 690104445267 4324003 TSP 4324003 Hi Vis Yellow XL 690104445410 4550008 TSP 4550008 Royal Blue 2XL 690104445373 4550004 TSP 4550004 Royal Blue 3XL 690104445427 4550009 TSP 4550009 Royal Blue 5XL 690104445342 4550002 TSP 4550002 Royal Blue 5XL 690104445397 4550006 TSP 4550006 Royal Blue Large 690104445366 4550003 TSP 4550003 Royal Blue Medium 690104445434 4550010 TSP 4550010 Royal Blue Medium 690104445403 4550007 TSP 4550007 Royal Blue Small 690104445380 4550005 TSP 4550005 Royal Blue X Small LG 105 laser sights for the wildly popular Smith & Wesson J Frame revolver line feature a hard polymer surface that is rugged and well suited for personal defense snag free draw