Colt Firearms M4 Carbine Magpul 5.56 NATO / .223 Rem 16.1″ Barrel 30-Rounds


The Colt M4 Carbine Magpul delivers a highly accurate, reliable, and durable rifle platform with exceptional performance. It comes chambered in 5.56 NATO with a 16.1 inch barrel. Features include an M-LOK handguard, a flip-up rear sight, an adjustable stock, and a 30 round magazine. Get the best AR15 rifles and bulk ammo for sale online from us today!



Colt M4 Carbine Features

Colt’s all-new MPS-B series of rifles shares many features of its battlefield-proven brother. The heart of this M4 Carbine is its 16” chrome-lined barrel that is incredibly accurate and capable of sustained fire rates. With a 1:7” twist, ammunition selection is virtually unlimited. Colt has also teamed up with Magpul to outfit this carbine with the most highly sought-after accessories making sure this is not a ”bare-bones” rifle. Magpul MOE SL handguards, MOE SL carbine stock, MOE SL pistol grip, MOE vertical grip, and Magpul backup sights all come as standard equipment on this exceptional rifle. The Colt MPS-B Magpul Series is the quickest way to get the customized rifle you want at an exceptional price point.

Built off of the Colt M4, the Colt M4 Carbine is by far one of the most popular AR-15 rifles of all time! Simple and lightweight, this rifle has great maneuverability and exceptional performance that Colt is known for. Chambered in 5.56 NATO, it has a 16.1-inch barrel, a Magpul rear sight, and a 30-round magazine. It also has a 4-position collapsible stock for easy carry and storage.

This Colt AR 15 utilizes a chrome-lined barrel, an adjustable-post front sight with rear Magpul Gen2 Back-Up Sight (MBUS), and a 30-round Magpul PMAG. This model has no carry handle. Get the Colt M4 Carbine and other Colt rifles from GrabAGun, the best online gun store!

Colt M4 Carbine Specifications

  • Brand: Colt Mfg
  • Model: M4 Carbine
  • Category: Tactical Rifles
  • Caliber: 5.56x45mm NATO
  • Stock Finish Group: Black
  • Capacity: 30+1
  • Stock Material: Synthetic
  • Action: Semi-Auto
  • OAL: 32″- 35.50″
  • Hand: Right
  • Sights: A2 Front, Magpul MBUS Rear
  • Barrel Finish: Black
  • Twist: 1:7″
  • Gun Platform: AR-Style
  • Magazine Type: AR-15
  • Grips: Black A2
  • Handguards: Heat Shield
  • Receiver Material: 7075-T6 Aluminum
  • Safety: Manual Thumb
  • Stock Description: Collapsible
  • Barrel Description: 4150 Chrome Moly Vanadium
  • Barrel Length: 16.10″
  • Max Capacity: 30
  • Receiver Finish: Black Hard Coat Anodized
  • Trigger: Single-Stage
  • Stock Finish: Black
Barrel Length 16.1
Caliber 5.56
Capacity 30
Condition New in Box
Finish Per Color Black
Manufacturer Colt Firearms
Manufacturer Part Number CR6920MPS-B
Model M4 Carbine
Type Modern Sporting Rifles
UPC 098289023537


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