Radical Firearms FR16-5.56SOC-15RPR-CO – 5.56 NATO Rifle, 16" Barrel, M-LOK Handguard, Colorado-Compliant Configuration – FR16556SOC15RPRCO
The Radical Firearms FR16-5.56SOC-15RPR-CO 5.56 RFL M-LOK (FR16556SOC15RPRCO) is a feature-packed, AR-style rifle designed for shooters who want a reliable 5.56 NATO platform in a Colorado-compliant configuration. Built around Radical Firearms’ proven receiver set and enhanced free-float M-LOK handguard, this rifle is ideal for range use, training, sport shooting, and home defense where lawful and appropriate.
With its 16" 5.56 barrel, full-length M-LOK handguard, and thoughtful compliance-oriented configuration, this FR16 variant delivers the ergonomics and performance AR owners expect while staying within Colorado’s magazine capacity and configuration requirements when paired with compliant accessories.
5.56 NATO Performance in a Trusted AR Platform
At the heart of the FR16-5.56SOC-15RPR-CO is a 5.56 NATO chambered system ready for a variety of roles:
Caliber: 5.56x45mm NATO (accepts .223 Remington as appropriate)
Ideal for range practice, training classes, and sport/target shooting
Compatible with a wide variety of factory 5.56/.223 loads for versatility
Whether you’re ringing steel, running drills, or working on fundamentals, this rifle offers the accuracy and dependability modern shooters demand from a 5.56 AR.
16" Barrel – Balanced Length for Handling and Velocity
The FR16 utilizes a 16" barrel, widely considered the sweet spot for many AR applications:
Excellent balance of maneuverability and ballistic performance
Long enough to provide effective velocity for common 5.56 loads
Short enough for easier handling in and around vehicles, barricades, and range structures
This barrel length works well as an all-around configuration, suitable for everything from general target shooting to defensive training, where lawful and appropriate.
15" Free-Float M-LOK Handguard – Ready for Accessories
One of the standout features of the FR16-5.56SOC-15RPR-CO is its 15" M-LOK free-float handguard:
Full-length M-LOK® attachment slots for accessories like lights, grips, bipods, and QD sling mounts
Free-float design helps enhance accuracy potential by reducing contact on the barrel
Extended length offers greater support hand placement for improved control and recoil management
If you like to set up your rifle for different roles—home use, class use, or range-only configurations—the M-LOK handguard makes customization simple and secure.
Colorado-Oriented Configuration (CO)
The “CO” in the designation highlights this model’s Colorado-oriented configuration when paired with compliant magazines and accessories:
Designed with CO shooters in mind, taking into account typical state capacity and setup preferences
Ships as a 5.56 rifle that can be configured and used in accordance with Colorado state law when proper accessories are utilized
Ideal for buyers looking for an AR-style rifle aligned with state restrictions without starting from scratch
Always verify current local and state firearm regulations and ensure that any magazines or modifications remain compliant.
AR-Style Ergonomics and Controls
The FR16-5.56SOC-15RPR-CO retains the familiar controls and ergonomics shooters expect from a modern AR-15 pattern rifle:
Standard AR-style charging handle and safety selector
Familiar magazine release and bolt catch layout
Compatible with a wide range of AR-pattern stocks, grips, and accessories (where legal)
If you already know and train on AR-style rifles, you’ll feel right at home with the FR16 platform.
Optics-Ready Upper – Add Your Preferred Sight System
This Radical Firearms FR16 model is designed to be optics-ready, giving you flexibility in your sighting system:
Flat-top upper receiver with Picatinny rail for easy mounting of red dots, LPVOs, or traditional scopes
Handguard typically offers continued top rail or modular positions for backup iron sights (not all configurations include sights—check package contents)
Allows the shooter to tailor their setup for close, mid-range, or general-purpose use
Whether you prefer rugged red dots for defensive roles or magnified optics for distance work, the FR16 can be set up for your needs.
Built for Range, Training, and Practical Use
The RF FR16-5.56SOC-15RPR-CO is an excellent choice for:
Recreational and target shooting at the range
Training classes focused on carbine skills and fundamentals
Home defense roles, where lawful and appropriate and configured with suitable ammunition and accessories
Shooters who want a Colorado-oriented AR-style rifle without needing to source every component individually
Its combination of 5.56 performance, M-LOK modularity, and CO-focused configuration make it a flexible, practical rifle option.
Key Features – RF FR16-5.56SOC-15RPR-CO 5.56 RFL M-LOK
Model: RF FR16-5.56SOC-15RPR-CO
SKU: FR16556SOC15RPRCO
Caliber: 5.56x45mm NATO (accepts .223 Rem within spec)
Barrel Length: 16" (approx.)
Handguard: 15" free-float M-LOK handguard
Platform: AR-style semi-automatic rifle
Configuration: Colorado-oriented (CO) when paired with compliant accessories
Use Case: Range, training, sport/target shooting, and home defense where lawful
(Always check product-specific details and included accessories from the seller, as exact furniture and small parts can vary by batch or listing.)
Why Choose the RF FR16-5.56SOC-15RPR-CO?
5.56 NATO chambering in a proven AR-style format
16" barrel + 15" M-LOK handguard for a versatile, modern carbine configuration
Colorado-oriented configuration, ideal for shooters needing a rifle aligned with state constraints when used with compliant magazines and accessories
Fully optics-ready with a modular handguard for lights, grips, and more
Built by Radical Firearms, known for offering feature-rich AR platforms at approachable price points
If you’re looking for a 5.56 M-LOK AR-style rifle that’s designed with Colorado shooters in mind, the RF FR16-5.56SOC-15RPR-CO 5.56 RFL MLOK CO (FR16556SOC15RPRCO, 814034028783) is a strong, versatile option for range work, training, and responsible defensive roles where legal.
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