6mmProShop CO2 Magazine for KWA PTS LM4 Series Gas Blowback Rifles (Version: 350 FPS)

6mmProShop CO₂ Magazine — KWA PTS LM4 Series (350 FPS) — Heavy-Duty CO₂ Feed Mag (38rd)

Push your KWA PTS LM4 into high-performance CQB duty with the 6mmProShop CO₂ Magazine, engineered for players who want crisp blowback, consistent power, and an aggressive edge on the field. Built from a blend of metal alloy and reinforced polymer, this 38-round CO₂ mag is purpose-designed for CQB-legal power builds (rated ~350 FPS) and tuned to deliver dependable feeding and a positive tactile feel every time you cycle the bolt.

Built to perform — construction and durability

The 6mmProShop CO₂ magazine combines heavy-duty metal alloy components where strength matters with polymer elements to save weight and resist impact. Precision molding and reinforced internal geometry make this magazine resistant to deformation from drops and rough handling. The textured magazine case provides a sure, non-slip grip for faster reloads under stress — an essential advantage in close-quarters engagements.

A removable base plate cleverly conceals the CO₂ screw for quick access during gas swaps, while protecting the valve from dirt and accidental adjustment during play. The feed lips are reinforced to prevent spread or failure under high spring tension, and the high-tension follower spring ensures consistent presentation of BBs for smooth chambering and minimal misfeeds.

Designed for CQB power and reliable cycling

This magazine is calibrated specifically for CO₂ operation at roughly 350 FPS, making it suitable for fields and event rules that accept CO₂-powered rifles within that chrono window. An integrated standard flow valve optimizes gas delivery for reliable cycling and helps reduce cooling effects that can sap performance in extended strings of fire. The included valve and internal sealing are engineered for efficient gas use while producing the crisp, heavier blowback sensation competitive players and trainers appreciate.

Capacity and compatibility

With a 38-round capacity, the mag strikes a balance between realistic capacity and compact handling for LM4-style PCC and rifle setups. It is purpose-built for KWA PTS LM4 series gas blowback rifles and compatible TM/GHK-style platforms that accept the same magazine geometry. Confirm compatibility with your platform before purchase to ensure correct fit and reliable function.

Practical features for field use

• Textured body for fast, secure reloads.

• Removable base plate hides the CO₂ screw and speeds maintenance.

• Heavy-duty feed lips and high-tension spring to reduce misfeeds.

• Reinforced alloy construction where it counts; polymer body to reduce weight.

• Integrated standard flow valve tuned for CQB-legal CO₂ power.

Important safety & maintenance notes (read before use)

• Recommended for advanced users. CO₂ operates at elevated pressures compared with green gas; this mag will generate more stress on your rifle’s bolt, slide, and internals. Expect accelerated wear on stock components.

• Not recommended for stock guns. For reliable long-term use, upgrade to reinforced internals (strengthened hammer, sear, bolt, and high-durability nozzle) and confirm your recoil spring and buffer system are compatible with CO₂ cycling.

• Warranty void warning: Modification of green gas and CO₂ magazines to use aftermarket HPA fittings and valves will void all included warranties due to the risk of damage from high pressure and misuse. Do not install high-pressure fittings unless explicitly rated by the manufacturer.

• Keep seals lubricated and inspect O-rings regularly to prevent leaks. Replace worn parts promptly to maintain performance and safety.

Who this mag is for

This 6mmProShop CO₂ magazine is ideal for advanced players, milsim teams, and trainers who want the heavier blowback and consistent power of CO₂ at CQB-legal velocities. If you run reinforced internals or a purpose-built CO₂ platform, this magazine gives you the tactile feedback and performance edge needed for fast, aggressive play.

Specifications (quick reference)

• Manufacturer: 6mmProShop

• Type: CO₂ Magazine (350 FPS version)

• Compatibility: KWA PTS LM4 series and compatible GBB platforms

• Capacity: 38 rounds

• Construction: Metal alloy + polymer, reinforced feed lip

• Gas Type: CO₂

• Color: Black

Upgrade your LM4 platform with a magazine built for power and durability — the 6mmProShop CO₂ Magazine delivers hard-hitting CO₂ performance, rugged construction, and field-ready features for experienced players who demand more from their kit.