Aluminum Made in the USA and Imported C4 LED technology, impervious to shock with a 50,000 hour lifetime; 510-530nm direct drive green laser with wide operating temperature range Streamlight TLR-2 HLG Tac Light with laser Black Finish Includes Rail Locating Keys for Glock style 1913 Picatinny S&W White and green laser settings Green laser provides high-visibility long-range targeting Includes keys for Glock-style, Picatinny, Beretta 90two, S&W 99 and S&W TSW