Fenix Lighting Rail Mount Black. The quick release roller allows you to mount a flashlight for a secure fit. Made of hard-anodized aluminum the Fenix ALG-16 Rail Mount is strong and lightweight - perfect for harsh conditions where durability counts. Specifications for Fenix Lighting ALG-16 Rail Mount: Manufacturer: Fenix Lighting Flashlight Application: Casual Outdoor Fabric/Material: 6061-T6 Aluminum Color: Black Finish: Hard Anodized Features of Fenix Lighting ALG-16 Rail Mount Patented roller allows for quick assembly and disassembly. Compatible with flashlight body diameters of 23.5-26mm and a head less than 40mm including C7 E28R E35R HT18 HT30R LD30 RENEGADE PD32 V2.0 PD35 V3.0 PD35R PD36R PD36R PRO PD36 TAC PD40R V2.0 TK16 V2.0 TK20R V2.0 TK22 TAC TK26R TK30 WF26R Package Contents: Fenix Lighting ALG-16 Rail Mount Fenix Lighting ALG-16: ALG-16 Rail Mount Black