The Magpul PMAG 30 AR/M4 GEN M3 300 Blackout Magazine is a magazine for AR Rifles, offered in Black, Olive Drab Green.
The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles chambered in 300 Blackout. Since its inception, 300 Blackout shooters have had to use a magazine designed for another cartridge, limiting its ultimate performance and compatibility. One of the nice features of 300 Blackout is the compatibility with 5.56x45mm parts, but with the magazine it is a compromise to do so. Due to the wide variety of projectile weights and profiles potentially decreasing overall reliability, a dedicated 300 Blackout magazine was a logical step for the PMAG line. In addition to the performance gained by a dedicated mag, the PMAG 30 AR 300 B also offers a safer way to feed your 300 Blackout rifle. When using 5.56x45mm mags, the potential to chamber and fire a 300 Blackout round in a 5.56x45mm rifle with catastrophic results requires diligent ammunition management by the shooter. The PMAG 30 AR 300 B's distinct rib 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.
Magazines are made for specific firearms and calibers. Check the platform and caliber named in the title match your firearm before ordering.
How It Compares
Also compare the Magazine for AR Rifles, PMAG Gen M3, 300 Blackout, Magazine for AR Rifles, PMAG 10/30 AR/M4 Gen M3 and Magazine for AR Rifles, Tmag 30 AR/M4 Gen M3. Browse all magazines and the full Magpul range. New to this? Read our guide: Rifle and Pistol Magazine Guide.
Ideal For
- AR rifles chambered in 300 Blackout
- Shooters who keep 300 BLK and 5.56 magazines apart by feel
- Marking loads on the paint pen dot matrix
Key Features
- Dedicated for rifles chambered in 300 BLK
- 30-round body for compact increased maneuverability
- Distinct rib design and texture provide visual and tactile differentiation
- Next-generation impact and crush-resistant polymer
- Paint pen dot matrix to easily identify magazines with different loadouts
- PMAG 30 AR/M4 GEN M3
- 300 Blackout
- 30 Rounds
Compatibility & Fitment
For AR Rifles. Not sure it fits? Contact us before you order and we will check for you.
Technical Specifications
Brand | Magpul |
Type | Magazine |
Model | M3 |
Caliber | 300 Blackout |
Capacity | 30 Rounds |
Platform | AR-15 |
Colors | Black, Olive Drab Green |
MPN | MAG800-BLK, MAG800-ODG |
UPC | 840815117223, 840815150916 |
US Shipping & Support
Genuine Magpul, brand new and covered by the manufacturer's warranty. Shipping is free on US orders of $99 or more, and smaller orders ship from $6.95. Questions about fit, mounting or which option suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
What colors is it available in?
Black, Olive Drab Green. Choose your color from the options above.
What does the Magazine fit?
For AR Rifles.
Is this a genuine Magpul product?
Yes. It is a new, genuine Magpul product sourced through an authorized US distributor.
How much is shipping?
Shipping is free on US orders of $99 or more. Orders under $99 ship at a flat rate from $6.95 to $9.95, depending on the order total.
