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ERGO SuperLite™ Modular MLOK™ 15" Free Float Rail System


Product Description

The ERGO SuperLite™ Modular Free Float MLOK™ Rail System provides a 1.8” outside diameter and a 1.35” inside diameter designed to create a clean and sleek profile. Ventilation cutouts aid in rapid cooling, and provide substantial weight reduction.

12″ Version Weighs 9.2 ounces 

15″ Version Weighs 10.6 ounces

The ERGO SuperLite™ Modular MLOK Rail System, MLOK™ slots are located at the 3, 6, and 9 o’clock positions allowing users to run with or without rail covers. The MLOK rail provides multiple attachment locations for Ergo MLOK accessories including Ergo WedgeLok®; slot covers and as a host to all other MLOK compatible products.

Manufactured entirely in the USA from 6061 T6 aluminum, and Type III Class 2 hardcoat black anodized. The ERGO SuperLite™ Modular MLOK™ Rail System is available in two lengths, model #4820-12 12” and model #4820-15 15”.

Installation is simple using a standard ½” drive 1 3/16” crow foot wrench (not included), and all necessary mounting hardware is included.


  •  6061 T6 construction
  •  Type III Class 2 Hard-coat black anodized finish
  •  Lightweight one piece free float design
  •  MLOK™ design accepts Ergo and all other MLOK™ compatible accessories
  •  Full length, seamless Mil-Spec 1913 Picatinny top rail
  •  Scalloped Picatinny rail slots for comfort
  •  Sleek 1.8” outside and a 1.35” inside diameter
  •  For AR-15/M16 platforms (Not AR-10, SR25, etc.)
  •  Available in 12”, and 15” lengths
  •  Made to Magpul™ M-LOK™ specifications
  •  Made entirely in the USA.

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