Sig Sauer 21rd ProForce P320 M17 GBB Airsoft Magazine


The Sig Sauer 21rd ProForce P320 M17 GBB spare airsoft magazine by Sig Sauer is made from a heavyweight metal alloy, giving a hefty feel to the Sig M17 airsoft pistol. This green gas Sig Sauer magazine has a high-efficiency internal gas system providing excellent FPS output, and reinforced valves and seals for optimal gas retention. We recommend using Valken Green Gas with this gas pistol magazine.

*Ships only within the United States

This Sig Sauer ProForce airsoft pistol magazine is a product of SIG SAUER. Valken, Inc. does not provide support, service or repair. Consult user manual for product warranty and service information from the manufacturer. All support and warranty cases must go directly through Sig Sauer via their website at and by phone at (603) 610- 3000 (option1).
  • Authentic SIG trademarks with polymer baseplate
  • Heavyweight, realistic feel
  • Metal alloy construction
  • Highly efficient internal gas system
  • High tension spring
  • Powered by green gas
  • Specifications
  • Compatibility: For Sig Sauer ProForce P320 M17 Airsoft GBB Pistols by Sig Sauer
  • Velocity: 340 FPS / 1.07 Joules (Measured with 0.20g BBs and Green Gas)
  • Capacity: 21 rounds
  • Gas Type: Green Gas
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