Daniel Defense RIS III 12.5" M-LOK Free-Float Handguard
The Daniel Defense RIS III 12.5" is a free-float rail system built around the RIS Bolt-Up mounting design, combining a continuous Mil-Spec 1913 Picatinny top rail with M-LOK attachment points along the handguard.
This rail uses an aircraft-grade 6061-T6 aluminum handguard with a steel barrel nut and integrated sling swivel attachment points. Parts will need to be sourced in order to install.

