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 our 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.
- Dedicated for rifles chambered in 300 BLK that supports the differing geometries found in that caliber
- 20-round body is more compact for increased maneuverability
- Distinct rib design and texture provide visual and tactile differentiation to mitigate dangerous cross-loading issues
- Next-generation impact and crush-resistant polymer
State & Local Restrictions — Order Reviewed Before It Ships
Some firearms, magazines, and accessories are restricted or prohibited in certain states, cities, and counties, and these laws change often. Each order is manually reviewed against the current laws for your shipping address before it ships. If we can't lawfully ship this item to your location, we'll contact you to cancel or adjust your order and issue a refund. You're responsible for knowing and following the laws where you live — if you're unsure, please check or ask us before ordering.