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Daniel Defense DDM4 AR-15 Handguard - 12.43"

AR-15 Handguard

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Daniel Defense DDM4 AR-15 Handguard - 12.43"


The Daniel Defense DDM4 Rail, found on many DDM4 firearm configurations, features an optimized one-piece, free-floating architecture. This design results in the ergonomics and proven durability users demand while maintaining the lightweight characteristics they expect from Daniel Defense.  The DDM4 Rail’s ergonomic design allows operators to maintain better control of the firearm.  Limited rotation QD swivel attachment points are located at the front and rear of both sides of this rail system for tangle-free attachment for slings. A continuous picatinny rail on top provides the rail real estate for sights and accessories.  DDM4 Rail 12.0 rail system is designed to be used in conjunction with a low profile gas block on either a carbine or mid-length gas system.  Rail System includes all required hardware (Barrel Nut, Bolt-Up Plate, & Screws), tools (Barrel Nut Wrench & Allen Wrench), and 3 Daniel Defense Rail Ladders made of high temperature resistant Santoprene.


  • Lightweight Free Floating Barrel Design
  • Steel Barrel Nut
  • Uninterrupted Upper Rail Platform
  • Integral Sling Swivel Attachment Points with Limited Travel
  • Patented Bolt-Up System
  • Mil-Spec 1913 Picatinny Rails


  • Material: Aircraft Grade 6061-T6 Aluminum
  • Finish: Military Specification Type III Hard Coat Anodized
  • Weight of Rail - 12.4 oz 
  • Weight Installed - 14.1 oz (w/ mounting Hardware)
  • Made in the USA!


  • Product Weight 12.4 oz
  • Rail Length 12.43"
  • Width 1.90"
  • Height 2.16"
  • Inside Diameter 1.08"
  • Barrel Nut Steel (For Patented Bolt-Up System)
  • Gas System Mid-length
  • Free Float Yes
  • Continuous Upper Rail Yes
  • Integrated Sling Swivel Attachment Point Yes
More Information
SKU 01-134-15163
Product Type AR-15 Handguard
Manufacturer Daniel Defense
Inside Diameter 1.08"
Rail Length 12.43"
Option AR-15

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