Reptilia ARCA Handguard

Meet the Reptilia Handguard Arca, purpose built with a machined in Arca-Swiss interface that brings true, direct to tripod capability to the rifle. While the Arca standard originated in precision photography, it’s now the go-to mounting solution for shooters who demand fast attachment, smooth fore-aft adjustment, and dependable stability in real-world conditions.

The design centers on Reptilia’s patented turnbuckle mounting system, delivering a secure, repeatable lockup across all standard M4 upper receivers without adding unnecessary bulk. A continuous Arca profile along the bottom of the handguard allows you to fine-tune rifle balance in seconds, especially valuable when running heavier optic setups.

Full M-LOK compatibility is maintained, giving you the flexibility to mount bipods, lights, and other accessories alongside your tripod interface without compromise.

Proudly made in the USA, the Reptilia Arca Handguard is backed by a lifetime warranty against manufacturing defects, reinforcing a commitment to durability and long-term performance.
Available in Black and FDE.
NOTE: 15″ HANDGUARD SHOWN IN PRODUCT IMAGES.

Highly recommended tools

Barrel Nut and Turnbuckle Wrench
(Sold Separately)

• Barrel Nut Torque Spec: 50 ft.-lbs.
• Turnbuckle Torque Spec: Hand tight with red thread locker

Weights

• 13″ = 410g
• 15″ = 478g

Installation instructions available here