The Arisaka Momentary Tailcap is a replacement switch for the Arisaka 300, 600, 18350 and 18650 Series Light Bodies, plus Surefire Scout lights. This model is designed to be momentary only with twist for constant on. The tailcap can be threaded all the way in for constant on, or backed out approximately two turns to prevent accidental activation during storage or travel.

• CNC Machined from 6061-T651 Aluminum
• Type III Hard Coat Anodized
• Made in the USA