Colt LE6920-FBP2 M4 Carbine | 16.1 in | 5.56 NATO

The Colt LE6920-FBP2 is an M4 carbine configured in the Federal Patrol (FBP) specification. It is a semi-automatic rifle chambered for 5.56 x 45mm NATO with a 16.1-inch chrome-lined 4150 CMV barrel and a Geissele 13-inch MK4 M-LOK free-float handguard. This configuration ships with Magpul MBUS PRO flip-up sights, a Magpul CTR 4-position stock, and a 30-round Magpul PMAG, delivering a purpose-built, service-oriented sporting rifle. A solid optic pairing under $1,000 for this platform is the Vortex Strike Eagle 1-6×24, which gives fast close-range capability and low-power precision for range work and tactical training.

Applications: range training and competition shooting are primary uses for this configuration; it is also specified for patrol and agency training roles.

Product Specifications

• The UPC is 098289020963.
• The manufacturer’s part number is LE6920-FBP2.
• The model is the M4 Carbine in the FBP configuration.
• The caliber is listed as 5.56 x 45mm NATO.
• The barrel measures 16.1 inches.
• The barrel material is 4150 CMV.
• The rifling is 1:7 RH, 6-groove and the barrel is described as chrome lined.
• The upper receiver is constructed from 7075-T6 aluminum with a black hardcoat anodized finish.
• The lower receiver is constructed from 7075-T6 aluminum with a black hardcoat anodized finish.
• The handguard is a Geissele 13-inch MK4 free-float M-LOK rail.
• Included sights are Magpul MBUS PRO flip-up front and rear.
• The stock is a Magpul CTR 4-position adjustable stock.
• The operating system is direct gas impingement.
• The trigger type is a single-stage trigger.
• The rifle includes one 30-round Magpul PMAG magazine.

This Colt LE6920-FBP2 blends a service-oriented M4 platform with upgraded ergonomics and a free-float Geissele MK4 rail, giving a stable accessory platform and proven hardware. The package is practical for high-volume range work and training where durable parts and straightforward ergonomics matter; the Geissele rail provides solid mounting for optics and lights while the Magpul furniture keeps the handling familiar and adjustable. For shooters who want a ready-to-use AR platform with high-quality factory accessories, this configuration is designed to limit guesswork and deliver dependable serviceable components.