Geissele HK SMR 3-Hole Black Accessory Picatinny Rail 02-212HKB is designed specifically for use with Geissele HK Super Modular Rails, adding a genuine 1913 Picatinny-spec mounting surface where the SMR's M-LOK slots alone won't cut it. This Geissele SMR rail accessory attaches through a 3-hole interface for a secure, repeatable accessory position every time it's removed and reinstalled. It allows the attachment of standard 1913 Picatinny Rail-mounted accessories such as lights and vertical grips, giving builders a hard-mount option without needing to swap the entire handguard for a different rail system. Machined from milspec-anodized aluminum, this Geissele HK rail accessory carries 7 slots, enough length for most common accessory mounting needs without adding unnecessary bulk to the handguard. Key Features: 3-hole mounting interface for Geissele HK SMR rails 7 Picatinny slots, 1913 spec Machined from milspec-anodized aluminum Black finish Compatible with standard Picatinny accessories (lights, grips) Secure, repeatable accessory position Sold as a single accessory rail section Designed specifically for HK Super Modular Rail platforms This Geissele HK SMR 3-Hole Picatinny Rail gives an HK SMR build the hard-mount flexibility that M-LOK alone doesn't always provide. Geissele HK SMR 3-Hole Black Accessory Picatinny Rail 02-212HKB