Lancer Tactical Block 3 13" GBB Full Metal Airsoft Rifle w/ M-LOK Rail by Golden Eagle - Black

Green Gas • Gas Blowback • Full Metal • 13" MK16-Pattern M-LOK • 40-Round Magazine

The Lancer Tactical Block 3 13" GBB Full Metal Airsoft Rifle by Golden Eagle combines a modern M4-inspired configuration with the mechanical realism of a Green Gas blowback rifle.

Its full-metal construction provides substantial weight and a solid feel, while the gas blowback action adds recoil and mechanical movement during firing. The rifle features a modern 13-inch MK16-pattern M-LOK handguard, flat-top Picatinny rail, adjustable Delta-style stock, QD sling mounting points and ambidextrous controls.

A 40-round Green Gas magazine, adjustable hop-up and Safe / Semi-Automatic / Full-Automatic fire modes give players a combination of realism, modularity and field versatility.

Overview

The Block 3 is built around one of the biggest reasons players move from an AEG to a GBBR: mechanical interaction. Gas operation produces a moving action and recoil impulse rather than relying on an electric gearbox to cycle each shot.

Externally, the rifle takes the familiar M4 concept in a distinctly modern direction. The long 13-inch MK16-pattern handguard provides M-LOK mounting positions, while the upper Picatinny rail provides mounting space for compatible airsoft optics.

The adjustable stock changes the rifle's overall length from approximately 800mm to 890mm, allowing the user to adjust the configuration for different equipment and playing styles.

Historical Background: From the M16 to the Modern M4

The Block 3's appearance comes from decades of evolution within the AR/M16/M4 family. The military M4 was developed as a shorter and lighter carbine that retained the familiar operating layout of the M16 family while providing greater maneuverability.

The M4 entered U.S. military service in 1994. Army historical records from that period show contracts covering approximately 24,000 M4-family carbines and specifically identify the M4A1 variant for special operations personnel.

One of the important changes was modularity. The M4A1's enhanced upper receiver incorporated a Picatinny rail that allowed different day and night sighting systems to be installed according to mission requirements.

That concept—one basic platform configured around the user's mission—continued to shape later AR/M4-style rifles and is one reason modern airsoft M4 platforms offer so many handguard, optic, stock and accessory configurations.

M-LOK History: The Evolution of the Modular Handguard

The Block 3's 13-inch handguard represents a much newer chapter in modular rifle design than the M4 itself.

M-LOK was released by Magpul in 2014 as an evolution of the company's earlier MOE slot system, which had been in use since 2007. M-LOK was developed as a direct-attachment system for mounting compatible accessories to negative-space mounting slots.

Rather than covering every side of a handguard with continuous Picatinny rail, M-LOK allows compatible accessories or rail sections to be installed only where they are needed.

That's why the Block 3 has a distinctly modern appearance: the M4-inspired receiver represents decades of platform evolution, while the 13-inch M-LOK handguard represents the newer generation of modular accessory mounting.

Why Gas Blowback Changes the Experience

A conventional AEG uses a motor and gearbox to compress a spring and fire the BB. A GBBR takes a different approach.

The Block 3 stores Green Gas in its magazine. During firing, gas operates the airsoft system and produces the blowback action that gives the rifle its characteristic mechanical movement and recoil.

This is why gas blowback rifles appeal to players who want more physical feedback and interaction from the platform rather than simply maximizing magazine capacity.

The tradeoff is that GBBRs require more attention to magazine seals, gas pressure, temperature and maintenance than a typical AEG.

13" MK16-Pattern M-LOK Handguard

The Block 3 uses a long 13-inch MK16-pattern M-LOK handguard that gives the rifle its distinctive modern profile.

The M-LOK mounting positions allow compatible airsoft accessories to be positioned according to the user's preferred setup, while the flat-top Picatinny receiver provides mounting space for compatible optics and sighting equipment.

The longer handguard also gives users more flexibility in support-hand placement compared with shorter CQB-oriented front ends.

40-Round Green Gas Magazine

The Block 3 includes a 40-round Green Gas magazine. Unlike an AEG magazine, the GBBR magazine is an important part of the rifle's operating system because it stores both BBs and the gas used during firing.

GBBR magazines should be handled carefully. Keep the gas valves and seals clean, inspect for leaks and use only magazines confirmed to be compatible with this specific Golden Eagle/Lancer Tactical platform.

Adjustable Hop-Up

The Block 3 features an adjustable hop-up system for tuning BB trajectory.

Gray Dragon Airsoft recommends starting with quality 0.25g 6mm BBs for this GBBR and then tuning the hop-up to the ammunition and field conditions being used.

Make small adjustments and test between changes. Too much hop can cause the BB to rise excessively, while too little hop can cause premature drop.

What Is the FPS of the 13" Block 3?

An exact manufacturer/supplier velocity specification for the 13-inch LT-81F-M was not provided in the supplied technical specifications.

Rather than copy the FPS rating from a different Block 3 barrel-length variant, Gray Dragon Airsoft leaves the velocity unassigned until a verified specification is available for this exact model.

Actual GBBR velocity can also vary with gas pressure, ambient temperature, BB weight and magazine condition. Always chronograph the rifle using the ammunition required by your field before play.

Ideal For

• Players wanting a full-metal M4-style GBBR
• Gas blowback enthusiasts
• Milsim-style airsoft loadouts
• Modern Block 3-inspired builds
• Players who value recoil and mechanical feedback
• Users wanting a long M-LOK handguard
• Players wanting Semi and Full-Auto operation
• Airsoft collectors
• Indoor or outdoor play where field limits permit

Gray Dragon Field Tips

• Start with quality 0.25g seamless 6mm BBs and tune the hop-up accordingly.
• Chronograph the rifle before every field session when required.
• Remember that Green Gas performance changes with ambient temperature.
• Keep magazine seals and valves clean and properly maintained.
• Inspect GBB magazines periodically for leaks.
• Never force the charging handle, bolt or controls if abnormal resistance is encountered.
• Make small hop-up adjustments rather than large changes.
• Verify magazine compatibility before purchasing additional GBBR magazines.
• Keep dirt and debris away from the magazine valves and feed path.
• Keep the selector on Safe whenever the rifle is not being fired.
• Always use appropriate ANSI-rated eye protection.

Frequently Asked Questions

Gray Dragon Airsoft Legal Notice

This product is an airsoft replica intended for responsible sporting and recreational use. It is not a real firearm. Appropriate eye protection should always be worn during use.

Never brandish or display an airsoft replica in public or use it in a manner that could cause another person to reasonably believe it is a real firearm.

Purchasers and users are responsible for understanding and complying with all applicable federal, state and local laws, field rules and safety requirements.