- Geissele Super Modular Rail (SMR) MK4 Handguard
- 15" length, M-LOK compatible
- Full-length Picatinny top rail
- Ultra-lightweight design
- Barrel nut wrench required for installation (sold separately)
- Gas block not included
- Color: Black
- MPN: 05-315B
The SMR MK4 M-LOK is Geissele's ultra-lightweight M-LOK handguard option, purpose-built with integrated M-LOK attachment points and a full-length top Picatinny rail.
