ProMag PMDRM-A21 50rd Blued Steel Drum for SIG MPX – 1 Pack
ProMag
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ProMag PMDRM-A21 — 50-round blued steel drum magazine specified to fit SIG MPX; sold as a single unit package (SKU PMDRM-A21).
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Description
Description
Product Overview
ProMag PMDRM-A21 — a Rifle Magazine accessory listed as a blued steel drum compatible with the SIG MPX platform. Package quantity is 1 (SKU PMDRM-A21).
Why This Product
- Fits SIG MPX: compatibility is explicitly listed as SIG MPX (product-269819:f010), key for buyers managing accessories for that rifle family.
- Blued Steel: the attribute identifies blued steel finish (product-269819:f009), relevant for finish or corrosion considerations where specified.
- Single-Unit Packaging: Package Qty 1 (product-269819:f008) — aligns with ordering single magazines as needed.
Key Verified Specifications
- Brand / Manufacturer: ProMag (product-269819:f002; product-269819:f006; product-269819:f007)
- Product categories: Accessories; Accessory; Rifle Magazines (product-269819:f003; product-269819:f004; product-269819:f005)
- Package quantity: 1 (product-269819:f008; product-269819:f011)
- Notable attributes: Blued Steel (product-269819:f009); Fits Sig MPX (product-269819:f010)
- SKU: PMDRM-A21 (product-269819:f013)
- Availability status: instock (product-269819:f014)
Appropriate Use Cases
- Ordering replacement or spare drum magazines for SIG MPX rifles where single-unit procurement is preferred (package qty: product-269819:f008).
- Including blued steel drum magazines in accessory lists for SIG MPX-compatible configurations (product-269819:f009; product-269819:f010).
What Customers Should Know
- Compatibility is listed as “Fits Sig MPX” — verify fit with the exact SIG MPX model and any aftermarket components before use (product-269819:f010).
- Package Qty is 1; confirm order quantity for larger inventory needs (product-269819:f008).
- Confirm SKU PMDRM-A21 on purchasing and receiving documents (product-269819:f013).
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

