Windham Weaponry CDI 5.56mm Semi-Automatic AR-15 with 15-Inch M-LOK Handguard


Category: Product ID: 1645


The Windham Carbine CDI is an M4-style carbine chambered for 5.56mm NATO. It is a continuation of the ever popular CDI line, featuring updated enhancements such as a 15″ Windham Weaponry M-LOK Handguard and many popular Magpul accessories. Think of the CDI as the firearms equivalent of a Shelby Mustang – already factory equipped for maximum performance.

Windham Weaponry offers a Lifetime Transferable Warranty on all its rifles for any and all manufacturer’s defects in material and workmanship. Visit for complete details.

Firearm Specifications

  • Model: R16M4SFSCT
  • Caliber: .223 Rem. / 5.56mm NATO
  • Type: Rifle
  • Action: Semi-Automatic Gas Impingement System
  • Capacity: 30 + 1- Ships with one 30 Round Magazine (accepts all std. sizes)
  • Safety: Manual Lever with Indicator Markings on Both Sides of Receiver
  • Receiver: M4A4 Type Flat Top Upper Receiver
  • Receiver Material: Forged 7075 T6 Aircraft Aluminum with Aluminum Trigger Guard
  • Receiver Finish: Hardcoat Black Anodize Finish
  • Trigger: Standard Mil-Spec Trigger
  • Bolt Material:Carpenter 158 Steel
  • Barrel: 16” M4 Profile Chrome Lined with Vortex Flash Suppressor
  • Barrel Material: 4150 Chrome Moly Vanadium 11595E Steel w. M4 Feed Ramps
  • Rifling: 1 Turn in 9” – Right Hand Twist
  • Stock: Magpul CTR Carbine Stock with Magpul ASAP QD Single Point Receiver End Plate
  • Forend: 15″ Windham Weaponry Aluminum M-LOK Free Float with Magpul M-LOK Hand Stop
  • Pistol Grip: Magpul MOE Black Pistolgrip with Storage Compartment
  • Rear Sight: Magpul MBUS Pro Metal Rear Sight
  • Front Sight: Magpul MBUS Pro Metal Front Sight
  • Packaging: Hard Plastic Gun Case with Black Web Sling & Operators Manual


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