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
This drum replacement or spare magazine is compatible with your Sig Sauer MPX. It is constructed of DuPont Zytel polymer with injection molded mag follower and stainless steel wire. Made in the USA.
Specifications
| Caliber / Gauge | 9mm |
|---|---|
| Capacity | 50rd |
| Model | Standard |
| Overall length | 14.5500 |
| Color | Black |
| Fits | Sig Sauer |
| Fits model | MPX |
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 DRMA21 Standard 50rd Drum 9mm Luger Fits Sig MPX Black DuPont Zytel Polymer
SKU 127440UPC 708279014567MFG# DRMA21
Caliber / Gauge 9mmCapacity 50rdColor BlackModel Standard
$98.00In 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
