Geissele 05827S Super Modular Rail MK15 10.50 inch

The Geissele Automatics Super Modular Rail HK416 MK15 (model 05827S) is a direct-replacement handguard designed for HK416 and MR556 weapon platforms. It measures 10.50 inches and employs an M-LOK attachment system to support modular accessories. Constructed from 6061-T6 aluminum and finished in Type III hardcoat anodize, the SMR HK416 MK15 is built to deliver the rigidity and modularity expected of Geissele products. Installation uses the stock HK barrel nut for a compatible fit with the intended platforms.

Key Specifications

• The model number is 05827S.
• The rail measures 10.50 inches in length.
• The rail is made from 6061-T6 aluminum.
• The finish is Type III hardcoat anodize.
• Compatibility is listed as HK416 and MR556 platforms.
• The system uses an M-LOK modular attachment interface.
• Installation utilizes the stock HK barrel nut.
• The product meets military specifications per the manufacturer.
• This item is an AR-style handguard intended for HK416/MR556 form factors.

When durability, rigidity, and modularity matter, the SMR MK15 provides a purpose-built platform for mounting accessories while maintaining the footprint and installation method of the original HK rail. Its hardcoat anodized 6061-T6 construction offers long-term corrosion resistance and dependable service in demanding use cases.