Why this is restricted
- California roster (handguns). Off-roster handguns — those not on California's approved roster of certified handguns — may not be sold to the general public; only law-enforcement and other exempt buyers qualify.
- Large-capacity magazine law. Magazines over 10 rounds may not be sold or transferred to the general public in California.
- Law-enforcement / exempt exception. Qualified peace officers and agencies may purchase under the statutory exemption.
- Verified in person. We confirm your LE credentials at the counter before releasing the item — the online attestation does not complete the sale.
- Non-exempt orders. Cannot be delivered; a 50% restocking fee applies (minimum the lower of $50 or the item price).
At pickup, bringValid law-enforcement identification or agency authorization, plus your standard photo ID. Full list on Required Documents.
Description
Fits Sig Sauer P365 9mm pistol. Magazine body constructed of heat treated steel with black oxide finish. Magazine spring formed from heat treated chrome silicone wire.
Specifications
| Caliber / Gauge | 9mm |
|---|---|
| Capacity | 20 |
| Overall length | 6.5500 |
| Color | Black |
California compliance
Restricted item. This item is available only to law-enforcement and other statutorily exempt buyers, verified in person at pickup.
ProMagLaw-enforcement onlyFFL for California deliveryFrom our warehouse
ProMag SIGA21 20rd 9mm Fits P365/365XL Steel
SKU MGPMSIG-A21UPC 708279015908MFG# SIG-A21
Caliber / Gauge 9mmCapacity 20Color Black
$29.00In stock at our warehouse — ready to ship
No California firearms excise — Law-Enforcement items are exempt.
In stock at our warehouse — ready to ship
It's not in our Napa cases today, but it's in stock at our warehouse and ready to ship. You complete the purchase and pick it up at the counter, same as anything else — we text you when it lands.
How you'll receive it
Law-Enforcement item — ships to our Napa store only (no drop-ship to other dealers). Credentials are verified in person at pickup.
Self-declared here; eligibility is verified in person at pickup — the online attestation does not complete the sale. This acknowledgment is captured again in the checkout Terms & Conditions gate.
CA-compliant transferLocal Napa pickupText when it arrives
