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Daniel Defense M4 12.0 Front Sight Free Float Rail System DD-1003

Daniel Defense M4 Rail 12.0 Front Sight Post Carbine DD-1003
Daniel Defense M4 Rail 12.0 Front Sight Post Carbine DD-1003
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Daniel Defense M4 Rail 12.0 Front Sight Post Carbine DD-1003

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Product Discontinued by Manufacturer

Daniel Defense M4 Rail 12.0 Front Sight Post Carbine DD-1003 has been discontinued by Daniel Defense and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Weapon Accessories, Gun Parts, Picatinny Rail Sections yourself to try and find the perfect replacement for you!

Product Info for Daniel Defense M4 Rail 12.0 Front Sight Post Carbine DD-1003

Daniel Defense M4 12.0 FSP Carbine Rail DD-1003 is a versatile method for mounting a slew of weapon accessories to your M4 or AR-15 carbine. At just over a foot in length, these Daniel Defense mounts are long enough to securely hold several different accessories, especially when you take into account the fact that there are military standard 1913 Picatinny rails on all four sides of the system. Daniel Defense has designed these rails with a small cutaway portion on the top rail that allows the front sight post of your weapon to protrude, giving you an analog aiming method when you don't want to use your laser sight or whatever else you have mounted on the rails. What's more, the cut only applies to the top rail, so you can use the other three rails of the Daniel Defense M4 Front Sight Carbine Rail System to their full capacity. Each rail on these mounts is protected by santoprene ladders or panels, and the whole package is machined out of aircraft-grade 6061-T6 aluminum. For a natural-feeling, durable, and versatile mechanism for mounting multiple weapon accessories to your carbine, choose the Daniel-Defense M4 Rail Handguard System 12.0.image

Required installation tools for Daniel Defense M4 FSP Rail:

  • Daniel Defense M4 Threaded Ring Spanner Wrench
  • Bench Vise
  • Upper Receiver Vise Block
  • Hammer
  • Punch Set
  • Torque Wrench
  • AR-15 Multi-Tool

Specifications for Daniel Defense M4 Free-Float FSP Picatinny Rail System:

Material: 6061-T6 aluminum
Finish: Type III hard anodized, matte black
Length: 12.5"
Width: 1.94"
Weight: 13.1 oz
Inside Diameter: 1.45"
Rails: 1913 Picatinny

Features of Daniel M4 Free Floating 1913 Rails:

  • Professional-grade free floating rail system from Daniel Defense
  • Made from 6061-T6 aircraft-grade aluminum
  • Utilizes military standard 1913 Picatinny rails
  • Lightweight and durable
  • Free-float design won't weight down barrel or decrease accuracy
  • Cut out of top rail for front sight post and gas block
  • Rails protected by santoprene panels or ladders, safe up to 350°
  • Oval shape feels like conventional foregrip
  • Locks to barrel nut or upper receiver to prevent accidental rotation
  • Requires light gunsmithing for installation

Package Contents:

  • Daniel Defense M4 12.0 FSP Carbine Rail DD-1003

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Daniel Defense M4 Rail 12.0 Front Sight Post Carbine DD-1003 Unavailable & Discontinued Models

List of Unorderable Models

  • Daniel Defense M4 Rail 12.0 Front Sight Post Carbine , MPN: DD-1003 , UPC: 852548002738 , Code: DDD-T8-DD-1003
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Last updated 2026-07-24 UTC.