KWA Spare Magazine for LM4 M4 Gas Blowback Airsoft Rifles (40rd, Green Gas)

Reliability meets realism with the KWA Spare Magazine for LM4 M4 Gas Blowback Rifles, a must-have accessory for any serious airsoft player running KWA’s legendary LM4 GBB platform. Designed to deliver consistent performance, solid construction, and flawless compatibility, this 40-round green gas magazine provides the dependable feeding and gas efficiency that KWA is known for — whether you’re training, competing, or dominating in a milsim environment.

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Built for the KWA LM4 — Precision Engineered Performance

KWA’s LM4 series rifles are celebrated for their realism, mechanical feedback, and training-grade precision — and their magazines are built to the same standard. This 40-round green gas magazine is engineered specifically for the KWA LM4 Gas Blowback Rifle, ensuring seamless fitment, smooth cycling, and stable FPS delivery with every shot.

Each magazine is carefully manufactured to maintain KWA’s signature consistency and durability, offering excellent air seal integrity and long-term reliability under demanding conditions. When you’re counting on your rifle to function flawlessly in the field, your magazine is the last thing that should fail — and with KWA’s craftsmanship, it won’t.

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Durable Metal Construction

Constructed from high-strength metal alloy, the KWA LM4 magazine is designed to handle the rigors of intense gameplay, tactical drills, and training sessions. The solid build gives the magazine a realistic weight and feel — closely replicating the heft of a real AR-style rifle mag — while also improving balance and authenticity during reloads and transitions.

The durable exterior shell resists dents and deformation from drops or impacts, while internal seals and feed lips are reinforced to prevent leaks and misfeeds. Combined, these design elements ensure this magazine performs shot after shot, season after season.

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Realistic Capacity and Operation

With a 40-round capacity, the KWA LM4 magazine delivers a perfect balance between realism and playability. The limited ammo count forces players to manage their shots and reloads strategically, simulating real-world combat conditions while still offering enough rounds for competitive gameplay.

Powered by green gas, this magazine provides crisp recoil, sharp blowback action, and consistent velocity across its capacity range. The efficient gas system maintains solid shot-to-shot consistency, keeping your LM4 cycling smoothly without major fluctuations in FPS or recoil strength.

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Smooth Feeding and Gas Efficiency

KWA’s gas system design emphasizes efficient gas consumption and dependable feeding. The magazine’s internal reservoir is optimized for balanced gas flow, resulting in reliable cycling even during rapid semi-auto or full-auto fire. A high-tension follower spring and precision-machined feed lips ensure BBs are fed consistently into the chamber, reducing the risk of dry fires or jams.

Proper maintenance, such as periodic lubrication of O-rings and seals, will extend the lifespan of your magazine and preserve gas retention — a hallmark of KWA’s high-quality engineering.

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Compatibility and Care

Compatibility: KWA LM4 Gas Blowback Airsoft Rifles
Capacity: 40 Rounds
Gas Type: Green Gas
Manufacturer: KWA

This spare magazine is designed exclusively for the KWA LM4 series and other compatible GBB platforms. Always verify model compatibility before use to ensure optimal performance.

Important Warranty Notice:
Modifying green gas or CO₂ magazines to use aftermarket HPA fittings and valves will void all warranties. These systems are not designed for high-pressure use, and such modifications can cause leaks, damage, or unsafe performance. Always use the magazine as intended with standard airsoft green gas to maintain safety and reliability.

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Why Choose KWA LM4 Magazines?

• Authentic Feel: Realistic weight and design for immersive gameplay.

• Durability: Full metal construction built for hard use and field longevity.

• Reliable Feeding: Smooth and consistent BB delivery for both semi and full-auto.

• Stable Gas Efficiency: Designed for optimal green gas performance.

• Perfect Fit: Engineered by KWA specifically for LM4 GBB rifles.

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Final Thoughts

The KWA Spare Magazine for LM4 M4 Gas Blowback Rifles is a professional-grade component designed to complement one of the most realistic airsoft rifle platforms ever made. Whether you’re training in tactical reloads, competing in events, or simply building your field kit, having spare KWA magazines ensures you stay in the game longer with consistent, high-performance reliability.

Trust in KWA’s craftsmanship — every reload should feel as solid as your first.