Sig Sauer Handgun Magazine P320 Full-Size .40/357 cal 18/rd
$47.70
Upgrade your Sig Sauer P320 with this full-size handgun magazine, designed for .40 and .357 caliber rounds and boasting an 18-round capacity. Ideal for competitive shooting or home defense, this magazine ensures reliable performance and quick reloading when it counts. Trust in the quality and precision of Sig Sauer for your firearm needs.
9 in stock
Sig Sauer Handgun Magazine P320 Full-Size .40/357 cal 18/rd
| Weight | 0.360 lbs |
|---|---|
| Dimensions | 9.750 × 4.000 × 1.850 in |
| Manufacturer | Sig Sauer |
| Capacity | 18 |
| Caliber | .40 S&W /.357 SIG |
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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