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MPN: MAG1182-BLK
In Stock
$16.95
Magpul's PMAG 20 AR 300 B GEN M3 is a purpose-built magazine for rifles chambered in .300 Blackout (300 BLK). Similar in every way to they PMAG 30 AR 300 B, the PMAG 20 is more compact for increased maneuverability and creates a more concealable package for use in small format firearms. The PMAG 20 AR 300 B's distinct ribbed design and smoother upper-half texture provides the shooter a distinct visual and tactile difference from any other PMAG to mitigate dangerous cross-loading issues.
Caliber: 300 Blackout
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Product availability can depend on the exact item, delivery address, and available supplier or carrier service. We check eligibility during checkout and may check again before fulfillment. A listing does not guarantee shipment to every address. Read our Product & Destination Restrictions policy for details; item-specific warnings and checkout checks still apply.
Restricted destinations: CA, CO, CT, DC, DE, HI, IL, MA, MD, NJ, NY, RI, VT, and WA.
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At a glance




| Attribute | MAGPUL PMAG 20 AR 300 B GEN M3 BLK | MAGPUL PMAG M3 300BLK 30RD BLK | MAGPUL PMAG M3 5.56 20RND BLK | MAGPUL PMAG M3 300BLK 30RD ODG |
|---|---|---|---|---|
| Color | Black | Black | Black | Olive Drab Green |
| Model | M3 | M3 | M3 | M3 |
| Type | Magazine | Magazine | Magazine | Magazine |
| Fit | AR Rifles | AR Rifles | AR Rifles | AR Rifles |
| Capacity | 20 count | 30 count | 20 count | 30 count |
| Caliber | 300 Blackout | 300 Blackout | 556NATO | 300 Blackout |