Umarex Colt 4.5mm/.177 M4 Spring Air Rifle – (WSL 2.4964 – COM4 177)

Description

• Officially Licensed Colt Design: Authentic military-spec M4 platform dimensions, markings, and surface finish for realistic handling.
• High-Velocity Break-Barrel System: Reliable spring-piston firing action delivering full power output up to 12 ft-lbs / 787 FPS.
• 4-Position Telescopic Stock: Multi-stage collapsible rear stock allowing shooters to adjust length-of-pull for custom shoulder fit.
• Quad Picatinny Rail Handguard: 22mm Picatinny handguard rails along the top, bottom, and sides for direct attachment of optics, foregrips, lights, and lasers.
• Detachable Magazine Housing: Removable mock magazine doubles as a practical storage holder for spare pellets, tools, or accessories.
• Adjustable Tactical Open Sights: Features an adjustable rear aperture sight and front post, fully removable for mounting red dots or rifle scopes.

Specifications at a Glance

• Model / Ref: Umarex Colt M4 (WSL 2.4964 / COM4 177)
• Calibre: .177 / 4.5mm Pellet
• Powerplant: Break-Barrel Spring-Piston Action
• Muzzle Energy / Velocity: Up to 12 ft-lbs / ~787 FPS (240 m/s)
• Overall Length: 990 mm (39 inches)
• Rifle Weight: 3,305 g (7.28 lbs)
• Safety Mechanism: Manual Trigger / Selector Safety
• Optics & Accessory Rails: Integrated 22mm Picatinny Quad Rail Handguard & Receiver Rail
• Barrel: Precision Rifled Steel Barrel
• Weight: 3.3kg (3305g)

Authentic M4 Tactical Styling with Spring Power

The Umarex Colt M4 .177 Air Rifle bridges the gap between tactical AR-15 ergonomics and high-power airgun performance. Designed under license, it captures the weight, proportions, and iconic outline of the world-standard military carbine while utilizing a self-contained spring-piston power source. This eliminates the need for CO2 capsules or air hand pumps, making it a grab-and-go setup for target practice and plinking

Accessory Integration & Adjustable Ergonomics

• Quad Picatinny Rail: The composite handguard incorporates four full-length 22mm Picatinny rails. This allows simple installation of vertical foregrips, tactical flashlights, laser aiming modules, or bipods.
• Optics & Iron Sights: The rifle comes equipped with iron sights, including a removable rear aperture unit. Removing the rear sight reveals an extended top Picatinny rail ready to accept red dot sights, reflex optics, or traditional airgun scopes.
• Adjustable Stock: The 4-position collapsible stock mirrors the military-issue CTR style, enabling quick adjustments to suit different shooter sizes, clothing layers, or eye-relief distances.

The iconic look of an M4 platform, packed with full-power hunting performance. The Umarex Colt M4 flawlessly bridges the gap between tactical military replica and high-performance spring-piston air rifle. Built with officially licensed Colt trademarks and inscriptions, it features a clever break-barrel spring mechanism hidden within the chassis. Pushing up to a hard-hitting 11.5–12 ft-lbs (the maximum legal limit without a firearms license), this rifle is equally suited for serious target shooting, backyard plinking, or small pest control.

• Officially Licensed Colt Replica: Features authentic Colt inscriptions, 1:1 scale geometry, a removable dummy magazine, and a collapsible tactical stock to fit all shooters.
• Full Legal Power (12 ft-lbs): Engineered to deliver maximum legal velocity (~787 FPS / 240 m/s using standard .177 pellets) for flat trajectories and dependable accuracy up to 50 meters.
• Classic Break-Barrel Reliability: No CO2 capsules or external air tanks required. The simple, heavy-duty single-shot spring-piston system delivers reliable, self-contained shots every time you cock the barrel.
• Tactical Customization Ready: Features integrated Weaver/Picatinny rails across the receiver and handguard for mounting scopes, red dots, lasers, or torches.
• Premium Open Sights: Equipped with a fixed front post sight and a fully adjustable windage/dual-aperture peep rear sight that mimics original military iron sights.
• Threaded Barrel: Includes an M14x1 CCW (Counter-Clockwise) muzzle thread under the removable factory flash hider, allowing you to easily add silencers/moderators via an adapter