Ring's BlueGuns M4 Flat Top Open Stock Training Gun FSM4FT

Overview of the Ring's BlueGuns M4 Flat Top Open Stock | FSM4FT

Ring's BlueGuns has been the standard in professional firearms training replicas since the early 1990s, and the M4 Flat Top Open Stock Training Gun (FSM4FT) continues that tradition. Molded directly from a real M4, this inert firearm simulator matches the live weapon's exact size and dimensions, so every draw, presentation, and retention drill feels exactly as it should.

Law enforcement officers, military trainers, and security professionals who need to protect their duty weapons from training wear and eliminate the risk of a live firearm in a drill environment rely on BlueGuns to bridge that gap. The FSM4FT ships in the instantly recognizable Law Enforcement Blue finish, though additional colors are available.

Key reasons professionals choose this replica:

• Life-size accuracy molded from the real firearm
• Steel rod armature inside solid polyurethane resists bending and flex
• Accepts real weapon lights, slings, grip sleeves, and most accessories
• Available in standard (non-weighted) or weighted versions
• Made in the U.S.A. with a one-year limited warranty

Key Features

• Material: Solid impact-resistant polyurethane with an internal steel rod armature that prevents bending and flexing during high-repetition training
• 1:1 Molded Accuracy: Cast directly from a real M4 carbine, the FSM4FT replicates every contour, the open stock, flat-top upper receiver, A2-style front sight, ribbed handguard, pistol grip, and detachable magazine, down to functional-looking sling swivels
• Law Enforcement Blue Color: The signature blue finish is the most recognized safety color in the training world, making this replica unmistakable as a non-live training tool during high-stress drills
• Steel Rod Armature: Long guns in the BlueGuns line feature an internal steel rod rather than a simple polyurethane core, providing the structural rigidity needed for repetitive force-on-force and retention exercises
• Accessory Compatibility: Because it is molded from a real firearm, your existing weapon lights, sights, rubber grip sleeves, and other M4-compatible accessories can be mounted directly to the replica
• Barrel Drill Option: The barrel can be drilled for compatibility with holsters and retention systems that require a locking pin, such as the Safariland ALS. This service is available for an additional $5 charge, or you may drill the barrel yourself
• Weighted Option Available: The weighted version adds internal metal weights to replicate the loaded balance and feel of a live M4, allowing shooters to train with realistic mass and weapon handling
• Versatile Training Applications: Ideal for weapon retention, room clearing, disarming practice, use of force decisions, close-quarters combat, drawing and holstering, target selection, and cover and concealment work
• Country of Origin: Made in the U.S.A.
• Warranty: One-year limited warranty covering defects in materials and workmanship; Ring's Manufacturing will repair or replace defective units free of charge for parts and labor

Specifications

Compatibility

The FSM4FT is a 1:1 replica of the M4 Flat Top carbine with an open (fixed) stock. Because it is molded from the actual firearm, it is dimensionally compatible with the full range of M4 and AR-15/M4 platform accessories, including weapon lights, optic mounts, sling systems, rubber grip sleeves, and similar aftermarket additions.

Barrel drilling for ALS-compatible holsters: Safariland ALS holsters and similar retention systems require a locking pin that engages the barrel. The barrel of the FSM4FT can be drilled to accommodate this. WCUniforms offers this service for a $5 charge. If you prefer to drill the barrel yourself and you are ordering the weighted version, note this at checkout so Ring's can position the internal weight clear of the drill path.

Color and brand limitations: The FSM4FT is available in blue and black as standard selections, with orange, green, gray, and yellow as special-order colors. 

This replica does not function as a firearm. It contains no firing mechanism and cannot chamber or discharge ammunition. It is an inert training aid only.

Intended Users

The Ring's BlueGuns M4 Flat Top Open Stock Training Gun is built for professionals and civilians who need a dimensionally accurate, completely inert replica for training without exposing a live weapon to risk of damage or unauthorized access.

Law enforcement and corrections professionals, including patrol officers, state troopers, sheriff's deputies, detectives, court bailiffs, corrections officers, and probation officers, use this replica for force-on-force drills, suspect control practice, and officer survival scenarios. Police academy recruits benefit enormously from repetition-heavy draw, holster, and retention training before ever handling a live firearm.

Military and security personnel, including active duty service members, military trainers, bounty hunters, and bail enforcement agents, use the FSM4FT for room-clearing drills, close-quarters battle preparation, and sudden assault response exercises.

Civilian users, including firearms range instructors, civilian self-defenders, and competitive shooters, rely on it to build muscle memory, practice safe weapon handling, and conduct scenario-based training at home or in structured settings.

Holster manufacturers and accessory makers also use Ring's BlueGuns as fitting forms to design, test, and display their products, a practice Ring's Manufacturing has supported for decades.

What's Included

• 1x Ring's BlueGuns M4 Flat Top Open Stock Training Gun (FSM4FT) in Law Enforcement Blue, black, orange, yellow, gray, or green.
  

Not included: Sling, optics, lights, or other accessories. A weighted version (FSM4FTW) is available separately and replicates the loaded weight of the live M4. Barrel drilling for ALS-compatible holsters is an optional add-on service.

Available at WCUniforms

WCUniforms is a specialty retailer focused on uniforms, tactical gear, and public safety equipment, serving law enforcement, military, corrections, security, and civilian customers across the United States. Unlike general sporting goods stores that carry a wide but shallow selection, WCUniforms stocks the professional-grade training tools that first responders actually use on the job.

Shop with confidence at wcuniforms.com, where professionals and civilians alike find the gear they trust, backed by responsive customer service and a deep catalog of public safety equipment.