5.11 Tactical doesn't just make military uniforms and apparel - they also manufacture a great selection of service gear and military equipment. When 511 Tactical sets out to design a piece of tactical gear, they have the same users in mind as their tactical clothing lines: the soldiers, sailors, marines, firefighters, police, and security officers who put themselves in harm's way daily, and can't afford to have anything less than the very best. 5-11 Tactical gear includes a range of durable outdoor products, from flashlights to watches and much more. This 5.11's Atac L1 L2 Replacement Tail Cap is for use with 5.11 Atac L1 and L2 flashlights. Features: Constructed from durable aircraft grade aluminum material, designed for use with 5,11 Atac L1 and L2 flashlights, as a reserve for loss or damage to the switch, four function switch with molded TPR and very durable. Material: Aluminum.