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Official ProForce M17 spare

This is the genuine Sig Sauer ProForce Green Gas magazine for the P320 M17 gas blowback pistol. It holds 21 rounds of 6mm BB, matching the round-count markings on the body for an authentic look, and runs on  Green Gas for strong, consistent blowback.

Heavyweight metal build

Made from a heavyweight metal alloy with a polymer base plate, the magazine adds realistic weight to the M17 and helps deliver a crisp recoil impulse. That solid feel is a big part of why the ProForce M17 is such a popular training and skirmish sidearm.

Wider compatibility

As well as the M17 CO2 pistol, Sig lists this magazine as compatible with the ProForce M17 gas, M18 gas and P320 XCarry gas models, so it can serve as a spare across the ProForce range.

Keep a spare charged

Carry a second magazine so you can reload fast, and stock up on BBs, gas and batteries before your next game day.

Bought from the specialists: our in-house workshop in Rochester, Kent can service, repair and upgrade your kit. See our airsoft gun repair and servicing.

General
BrandSig Air
ColourBlack
Build & furniture
ConstructionMetal alloy with polymer base plate
Dimensions
WeightApprox 9.3oz (264g) unloaded
Other
TypeCO2 blowback pistol magazine
Capacity21 rounds
Calibre6mm BB
FitsSig ProForce P320 M17 CO2 GBB pistol
Also compatibleProForce M17 gas, M18 gas, P320 XCarry gas
Power source12g CO2 cartridge
BB fillTop loading via speed loader
OEMSig Sauer ProForce (SKU AMPF-M17)

Frequently asked questions

Which pistol does this fit?

It is the official Sig Sauer ProForce magazine for the P320 M17 CO2 GBB pistol. Sig also lists it as compatible with the ProForce M17 gas, M18 gas and P320 XCarry gas models.

How many rounds does it hold?

It holds 21 rounds of 6mm BB, matching the real-steel round count marked on the magazine body for an authentic look and feel.

Green gas or CO2?

This is the CO2 version and takes a standard 12g CO2 cartridge, giving strong recoil and stable output for the M17 platform.

How heavy is it?

It is a heavyweight metal alloy magazine at around 9.3oz (264g) unloaded, adding realistic weight to the pistol and helping the blowback feel snappy.

Is this a complete pistol?

No. This is a spare or replacement magazine only. It does not include the pistol, but it lets you carry a charged spare for fast reloads on the field.