Sig Sauer P250 / P320 X5 Magazine 9mm - 21 Round

Manufactured by Sig Sauer
Manufactured by Sig Sauer
3 Reviews

In Stock

Standard orders will ship out within 1 business day if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

For individual Officer, First Responder, and Military pricing please make sure you are logged in. Click here for details

Magazines considered High Capacity are controlled by the ATF and/or local jurisdictions are not available for purchase/shipment in all areas.



OREGON CUSTOMERS: We are very sorry; Due to high holiday volume and unreliable shipping from the carriers, we are unable to ship this item in time for Measure 114.
The Sig Sauer P320 X-Five Extended Magazine gives you a total capacity of 21 rounds of 9mm ammunition while only extending about an inch below the magwell. This high capacity yet compact magazine is made from high quality steel with reliable follower and springs allowing for heavy use for many years to come. Perfect for a variety of uses from your competition gun to your home defense gun. Stock up on reliable OEM mags from Sig.

  • For Sig P320/P250 9mm handguns
  • Also fits in compact frames
  • 21 round total capacity
  • Steel construction
  • Polymer base plate
  • Side witness holes

Sig Sauer is a world-renowned firearms manufacturer with a rich history of innovation and design leadership. No other firearms manufacturer is so highly regarded and so universally respected for the quality, reliability, and safety of its products. Since 1864 they have expanded their product line to include suppressors, optics, ammo, and airguns to provide customers with a greater range of firearms and equipment.
See More


BrandSig Sauer
Caliber Gauge9mm Luger
Magazine Capacity21
PlatformSIG Sauer Magazines
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

3 reviews

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Sig p320

by -

Ordered to see if it would fit in a p320c and it did, fast shipping and great product

Awesome magazine

by -

great mag no hangups, and even good for competition shooters I recommend this magazine for any sig sauer carriers.

Great mag!

by -

This factory Sig 21rd magazine in 9mm is very nice. Made in Italy as my other factory mags. The texture on lower extended portion nicely matches & compliments pistol. Primary Arms delivered quickly & seamlessly! Market price is a little pricey - but very happy with the high quality product.