SIG SAUER P365 Magazine – 17-Round 9mm, Black (8900804)
A factory SIG SAUER 17-round 9mm steel magazine in black: black oxide finish, polymer baseplate, rear witness holes so you can confirm how many are in it, and an orange follower so you can see when it is empty. SIG includes two additional interchangeable floor plates. SIG part 8900804, UPC 798681660254.
This listing is for the black 17-round 9mm magazine, SIG part 8900804 only.
Factory Steel, Black Oxide
SIG specifies a steel magazine body, double stack, with a polymer baseplate and a black oxide finish. Color on this SKU is black. That is the factory magazine, not an aftermarket tube with a SIG-shaped follower.
Witness Holes and Orange Follower
Rear witness holes let you confirm loaded capacity from the back of the mag. The orange follower is there so an empty magazine is obvious at a glance. SIG ships two additional interchangeable floor plates with this magazine so you can match grip length; this listing is 8900804 as SIG packages it.
SIG SAUER 17-Round 9mm Magazine Specifications
| Manufacturer | SIG SAUER |
| Model | P365 17-round 9mm magazine, black |
| Part Number / SKU | 8900804 |
| UPC | 798681660254 |
| Caliber | 9mm Luger |
| Capacity | 17 rounds |
| Magazine Type | Double stack |
| Magazine Material | Steel |
| Baseplate Material | Polymer |
| Finish | Black oxide |
| Color | Black |
| Witness Holes | Rear witness holes |
| Follower | Orange |
| Firearm Type | Pistol |
| Included | Two additional interchangeable floor plates |
| Warranty | SIG SAUER Infinite Guarantee |
Frequently Asked Questions
Is this a factory SIG magazine?
Yes. This listing is SIG part 8900804.
What caliber and capacity?
9mm Luger, 17 rounds, double stack, steel, black oxide, black.
Does it include extra floor plates?
Yes. SIG includes two additional interchangeable floor plates with this magazine.
Will it fit my pistol?
This listing is SIG part 8900804, the factory 17-round 9mm magazine in black. Contact us if you need help confirming it matches your grip module. This listing is for 8900804 only.
Internal Reference:
8900804
Barcode:
798681660254
| Brand: Sig Sauer |
| Model: P365, P365 X-Macro, P365 XL |
| Caliber: 9mm |
| Capacity: 17 |
| Part Type: Magazine |
| Firearm Action: Semi-auto |
| Color: Black |
Check Shipping Availability
This product may have shipping restrictions in some states.
Customer Reviews
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Customer Feedback
Good OEM product
By Anonymous
Works well on my 365 XL came with base plates for quick change and proper fitment. Fair price great customer service here!
Sig magazines
By Anonymous
Best price around, good service, knowledgeable people.
Awesome
By Anonymous
Always Sig quality and awesome customer service. A++
Great
By Anonymous
2 Sig p365 mags. Great price. A real person even called me to verify my address and was very nice. Fast shipping. Highly recommend.
Great price, great customer service
By Anonymous
It's an oem magazine so there's not a lot to say about it other than it works exactly like you would expect. The price here was excellent and they ship very quickly and give you lots of updates so I'll be buying from Osage again.
Very Happy Customer
By Anonymous
I bought 2 of these from Osage County Guns, several months ago. I was very happy with the quality of the mags and service from Osage. They have the best price for Sig mags. At one point, I had a 15 round mag lying beside one of the 17 round mags. I noticed that they were exactly the same length. I decided to get 2 more. It is difficult to get that 17th round in the mag, but it can be done. I have made several purchases from Osage County Guns and have been pleased with each.
Sig is not synonymous with affordability
By Anonymous
These are well built magazines, but here are my gripes I have. One, Sig should’ve provided 3 magazines when purchasing the x-macro. I joke around that Sig is notorious for building a great $500 gun for $650. Two - it’s way overpriced even on this site. The price here has beat everywhere else I’ve shopped and I understand they undercut the market on MSRP, but dealer cost on these I bet are at most $15-20. Sig’s cost to manufacture these probably $3. However it’s still overpriced (not sure if OCG is held to minimum prices, they probably are), and also constantly out of stock here. But with no 3rd party option (like the p320) Sig holds the market hostage and can ask for a ridiculously high MSRP. I get OCG has to run a business, so my problem is more with Sig than OCG. Break-in period. I’ve never had the issue with any of my Glock magazines but holy crap these need to be broken in. Loading in the 17th round is a chore, even when using the loader that comes with the x-macro, or a Maglula. And until the magazine is broken in, holy crap
Excellent OEM mag
By Anonymous
I use this in my Sig 365 X. Works great
Highly recommended
By Anonymous
Good, solid construction provides the advantages of much larger pistol .Note that it has the same length as the 15 round magazine. Great price at Osage County Guns
SIG SAUER P365 17RD MAGAZINE - 9MM
By Anonymous
Excellent product, good price. I am 100% satisfied. Thank you
This item cannot be shipped to the following locations due to legal or carrier restrictions:
Restriction Details
This product cannot be sold or shipped to your location due to magazine capacity restrictions. Magazine capacity cannot exceed 10rd. If you believe this to be incorrect or if you're exempt from the restriction, please contact us at 636-791-1655.
Affected States/Territories (10):
Restriction Details
Colorado prohibits magazines with a capacity exceeding 15rd. If you believe this is in error or if you are exempt from the restriction, please contact us at 636-791-1655.
Affected States/Territories (1):
Restriction Details
Vermont restricts handgun magazine capacity to 15rd. This exceeds the state's restricted capacity. If you believe this is in error or if you are exempt from the restriction, please contact us at 636-791-1655.