FirstSpear TV

Introducing the Thyrm VariArc M-LOK

Helmet Light Mount with 360? Rotational Indexing

Sunnyvale, CA – Thyrm® is excited to announce that the VariArc® Helmet Mount is now available for helmets with M-LOK® rails. Featuring positive indexing at forward, umbrella and admin angles, the VariArc mount directs light right where you need it with a quick twist.

The VariArc helmet mount features locking teeth biased to the forward position, keeping your light aligned for the most critical uses; but with a firm twist, the VariArc mount unlocks and rotates through 8 additional lower-force index points for administrative tasks and diffused lighting options. Its small footprint and low-profile keep things tidy and the 1913 picatinny rail allows for maximum compatibility with visible and IR lights. Its reinforced polymer construction is built to remain fully functional through extreme temperatures, dirt, dust, sand, water, drops on concrete, and other rough handling. 

Features include:

Positively locks in the forward index position

Picatinny accessory rail with 3 slots and 4 ridges

Retention holes on both ends for dummy wiring critical gear

Durable, reinforced polymer construction with steel hardware

Compatible with M-LOK slots

Available in black and flat dark earth colorways

As with all Thyrm products, VariArc mounts are designed and made in the USA.

To learn more or purchase, head to or your favorite Thyrm dealer. Government orders: [email protected]

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