Sig Sauer P320-M17/M18 Handgun Magazine Coyote 9mm Luger 21/rd
$43.97
Extended 21-round magazine for SIG SAUER P320-M17/M18 handguns. Fits all full-size P320 pistols for increased capacity.
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Description
A 21-round extended magazine for the SIG SAUER P320-M17/M18. Also fits all full-size P320 pistols.
Additional information
| Weight | 0.355 lbs |
|---|---|
| Dimensions | 10.000 × 4.000 × 1.850 in |
| Manufacturer | Sig Sauer |
| Capacity | 21 |
| Finish | Coyote |
| Caliber | 9mm Luger |
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About brand
Sig Sauer is a prominent firearms manufacturer known for its high-quality handguns, rifles, and accessories. With a strong reputation for reliability and precision, Sig Sauer offers a diverse range of products that cater to both law enforcement and civilian markets.
Shipping and Delivery
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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