Colt M4 Carbine Federal Patrol Rifle

$1,599.00 $1,430.00
(5 reviews)
Current Stock:
Adding to cart… The item has been added

The Colt Federal Patrol Carbine is an advanced rifle based on Colt's legendary M4 platform adding key accessories as requested by the FBI. It features a new Geissele MK4 M-LOK® capable free-floated forend, and a set of Magpul PRO flip-up sights.


Action: Gas Operated Semi-Auto
Caliber: 5.56x45mm
Barrel: 16.1"
Capacity: 30+1
Finish: Matte Black
Receiver: Matte Black
Safety: Reversible Safety Selector
Sights: Magpul PRO Sights
Stock: Collapsible Stock
Magazine: 1 / 30 rd. Magpul PMAG
Weight: 6.5 lbs.
Rate of Twist: 1-in-7"
Barrel Length: 16.1
Overall Length: 32 to 35.5
Features: M-LOK Capable Geissele 13" MK4 Handguard


  • 5

    Posted by Zach on 28th Apr 2023

    Super cool and unique Colt Carbine as it's factory built with the Geissele mk4 rail for the FBI. Arms Unlimited is the best place to buy. Fast shipping and good prices.

  • 5
    Great choice!

    Posted by A on 2nd Apr 2021

    Performed as expected right out of the box!

  • 5

    Posted by Dominic Savo on 12th Aug 2020

    Awesome service and dependable quality

  • 5
    Colt AR

    Posted by Greg Zagaglia on 15th Apr 2020

    Excellent turn around time, great pricing.

  • 5
    First Gun

    Posted by Joseph Pollock III on 6th Apr 2020

    This is my first gun and first time using this site but a very good friend help me through and told me to use this site he buys a lot of guns on there and he was right it was easy and everything they said would happened did happen and I’m so happy with my purchase.