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ERGO SuperLite™ Modular KeyMod 15" Free Float Rail System


Product Description

The ERGO SuperLite™ Free Float Modular KeyMod Rail System provides a 1.8” outside diameter and a compact 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 KeyMod Rail System, KeyMod slots are located at the 3, 6, and 9 o’clock positions allowing users to run with or without rail covers. The KeyMod rail provides multiple attachment locations for Ergo KeyMod accessories including Ergo WedgeLok®; slot covers and as a host to all other KeyMod compatible products.

Manufactured entirely in the USA from 6061 T6 aluminum, and Type III Class 2 hard anodized. The ERGO Superlite™ Modular KeyMod Rail System is available in two lengths, model #4819-12 12”, and model #4819-15 15”.

Installation is simple using the 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 Anodized Finish
  • Lightweight one piece free float design
  • KeyMod design accepts Ergo and all other KeyMod compatible accessories
  • Full length, seamless Mil-Spec 1913 Picatinny top rail
  • Scalloped Picatinny rail slots for comfort
  • Sleek 1.8” outside diameter and a 1.35” inside diameter
  • For AR-15/M16 platforms (Not AR-10, SR25, etc.)
  • Available in 12”, and 15” lengths
  • Made to VLTOR Weapons Systems KeyMod Specifications
  • Made entirely in the USA.

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