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The ProMag DPMA3 is purpose-built for the most common .308 AR platform. Made from impact-resistant DuPont Zytel polymer, this 20-round magazine weighs significantly less than steel alternatives without sacrificing durability. The heat-treated chrome silicon wire spring and injection-molded polymer follower work together for smooth, consistent feeding shot after shot. If you run a DPMS LR-308, SR-25 pattern rifle, or most modern .308 AR builds, this magazine fits right in.
The textured polymer body provides a secure grip even with wet or gloved hands, which matters when you need reliable handling in the field. Every component is engineered for durability. The chrome silicon spring is heat-treated for reliability, and the follower is precision-molded to prevent binding. ProMag manufactures these magazines in the USA and backs every unit with a lifetime warranty against defects. This isn't a compromise on budget, it's confidence in the design.
This magazine is fully compatible with DPMS LR-308 and SR-25 pattern receivers, which covers the vast majority of modern AR-308 builds from brands like Aero, Savage, PSA, Mega Arms, and others. Just verify your rifle uses the DPMS/SR-25 pattern before ordering. These will not fit Armalite-pattern AR-10 rifles or rifles using proprietary magazine designs. The 20-round capacity keeps things practical for most shooting, whether you're at the range, hunting, or doing precision work.
It fits DPMS LR-308 and SR-25 pattern rifles, which covers most modern .308 AR builds. If your rifle uses an Armalite pattern lower receiver or proprietary magazine design, this magazine will not work. Check your manual or contact your rifle manufacturer to confirm the magazine pattern before ordering.
Polymer magazines are significantly lighter while maintaining durability for field use. The DuPont Zytel material resists corrosion better than steel in wet environments and requires less maintenance. For typical shooting and hunting, polymer performs as reliably as steel at a fraction of the weight, which adds up when you carry multiple mags.
ProMag covers manufacturer defects for the life of the magazine. This includes spring failure, follower issues, and material flaws. Normal wear, user damage, and improper modification are not covered. If you experience a defect, ProMag will replace the magazine at no charge.
Magazine fit varies by rifle. Most users report good function out of the box, though some notice these magazines fit snugly in certain receivers. If a magazine isn't dropping cleanly, the magazine catch and magwell may need inspection. A very small amount of sanding on the mag body can sometimes help fit without compromising durability.
| UPC | 708279012891 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DPM-A3 |
| Caliber/Gauge | .308 / 7.62 NATO |
| Capacity | 20 |
| Length | 6.5 |
| Model | |
| Model Fit | AR-308 |
| Package Height | 1.1 |
| Package Width | 4.1 |
| Product Type | Accessory-Magazines |
| Shipping Weight | 0.4 |
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