Sig Sauer ProForce P320 M18 Gas Magazine (21 Rounds - Tan - AMPF-M18GG)

Keep your primary sidearm fully loaded and performing at its peak with the Sig Sauer ProForce P320 M18 Gas Magazine (21 Rounds - Tan - AMPF-M18GG). Fully authorized by SIG AIR as an authentic factory original component, this green gas magazine provides the exact fit, weight, and cycling reliability required for high-stress airsoft skirmishes and force-on-force training exercises.

Heavy-Duty Full-Metal Shell & High-Efficiency Valves

Constructed from heavy-duty aluminum alloy, the M18 AMPF-M18GG Magazine is built to withstand direct drops on hard surfaces, rapid magazine changes, and tough field environments. Designed with optimized internal gas reserves, it delivers uniform pneumatic pressure to your pistol's blowback engine, ensuring hard-kicking recoil impulse and reliable slide-lock execution on the final round. The high-performance rubber fill and release valves maintain a leak-free seal, maximizing your overall shot count per gas charge.

Smooth Spring Follower & Authentic Tan Baseplate

Featuring a double-stack internal channel paired with a high-tension steel coil spring, this magazine holds up to 21 standard 6mm airsoft BBs. The smooth polymer feeding lip prevents double-feeding and misfires even during rapid trigger manipulation. The bottom is capped with an impact-resistant Coyote Tan polymer extended baseplate, matching the US Military standard color profile of the M18/M17 modular handgun system while shielding the fill valve against dirt, mud, and hard impacts.

Tactical Utility & Real-World Use Cases

Integrating multiple spare 21-round M18 magazines into your loadout unlocks clear performance advantages across varied tactical setups:

• Fast-Paced CQB Sidearm Transitions: Having extra magazines mounted on your chest rig or belt setup allows instant reloading when your primary rifle runs dry during room-clearing drills.

• Force-on-Force Tactical Training: Replicating the authentic weight and balance of real-steel magazines enables law enforcement and defense shooters to practice realistic speed reloads and malfunction clears.

• Coyote Tan / FDE MILSIM Kits: Color-matched to complement modern US Armed Forces, PMC, or desert camouflage loadouts for authentic aesthetic consistency.

Key Features & Technical Benefits:

• Official OEM Factory Magazine: Guarantees 100% drop-in compatibility with SIG AIR ProForce P320 M18 and M17 GBB pistols.

• Durable Full-Metal Body: Rugged alloy construction resists structural damage and minimizes cool-down effects.

• 21-Round Double-Stack Capacity: Provides high BB volume for intense sidearm firefights.

• Coyote Tan Baseplate: Impact-resistant floorplate protects the input valve and complements Tan/FDE pistol builds.

• High-Output Gas Valves: Engineered for maximum gas efficiency, steady velocity output, and crisp blowback.