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Police Officer Recommended by Cop approved, Verified Owner, October 3, 2026
Excellent quality and performance at a reasonable price. Looks factory made, fits perfectly
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Product Info for IMI Defense Sig Sauer P320 3-Round Magazine Extension

Introducing the IMI Defense Sig Sauer +3 Magazine Extension, meticulously engineered to elevate your Sig Sauer P320 with an additional three rounds of firepower. Compatible with both 9mm and 40 &W magazines. This +3 extension works with compact, standard, or extended length magazines seamlessly to integrate into your firearm for enhanced capacity without compromising performance.image

Crafted from lightweight yet durable reinforced polymer, the IMI Defense +3 Magazine Extension ensures exceptional quality and durability, providing reliability in any shooting scenario. With a straightforward installation process, simply replace the standard magazine base plate with the IMI Defense extension and the included spring insert plate no need to replace the spring.

Experience improved grip and control during shooting sessions, thanks to the extensions side and front tactile texture designed for eliminate slipping when stripping magazines from your firearm. Compatible with various Grip Modules, including AXG, X5 LEGION, XFULL, XCARRY, and XCOMPACT, as well as Nitrone grip modules, this extension offers versatility to suit your preferences and shooting style.

Upgrade your Sig Sauer P320 with the IMI Defense +3 Magazine Extension and unlock greater capacity, reliability, and performance for your firearm.

Specifications for IMI Defense Sig Sauer P320 3-Round Magazine Extension:

Manufacturer: IMI Defense
Fabric/Material: Polymer
Gun Make: SIG Sauer
Gun Model: SIG Sauer P320
Gun Type: Pistol
Caliber: 9mm Luger, .40 S&W
Magazine Capacity: 3 Round
Length: 4.6 cm
Width: 3.28 cm
Height: 2.19 cm
Weight: 30 g

Package Contents:

  • IMI Defense Sig Sauer P320 3-Round Magazine Extension

IMI Defense Sig Sauer P320 3-Round Magazine Extension Orderable Models

List of Orderable Models

  • IMI Defense Sig Sauer P320 3-Round Magazine Extension, Olive Drab Green, IMI-P320P3O.D. GREEN , MPN: IMI-P320P3O.D. GREEN , UPC: 810103455917 , Code: 5J1-PME-IMI02M-IMI-P320P3O-D-GREEN-3RD
  • IMI Defense Sig Sauer P320 3-Round Magazine Extension, Black, IMI-P320P3BLACK , MPN: IMI-P320P3BLACK , UPC: 810103455863 , Code: 5J1-PME-IMI02M-IMI-P320P3BLACK-3RD
  • IMI Defense Sig Sauer P320 3-Round Magazine Extension, Flat Dark Earth, IMI-P320P3F.D.E , MPN: IMI-P320P3F.D.E , UPC: 810103455962 , Code: 5J1-PME-IMI02M-IMI-P320P3F-D-E-3RD
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Last updated 2026-10-20 UTC.