Magpul200189080
Magpul Mag800-Odg Pmag 30 Ar 300 B Gen M3 300$14.56
Availability: In Stock
Current Stock: Out of stock
The Magpul PMAG 30 AR 300 B Gen M3 is a purpose-built magazine for 300 Blackout rifles that solves a real problem: for years, 300 BLK shooters have had to improvise with magazines designed for other cartridges. This dedicated mag eliminates that compromise. Because 300 Blackout's varied projectile weights and profiles can stress a generic magazine, Magpul engineered this one specifically around 300 BLK geometry and feeding reliability. You get a magazine built exactly for how your 300 Blackout rifle actually works.
Safety matters here too. Cross-loading ammunition between similar-looking magazines—say, grabbing a 5.56 mag by mistake and feeding it to your 300 BLK rifle—can create a dangerous situation. The PMAG 30 AR 300 B solves this with a distinctly different rib pattern and smoother upper-half texture. At a glance or feel in your mag pouch, you know exactly what you're holding. That visual and tactile difference is intentional and critical for anyone running both calibers.
Like all Gen M3 PMAGs, this magazine brings modern durability to the range and field: next-generation impact and crush-resistant polymer construction, aggressive front and rear texture for secure handling, and an easily removable slim floor plate for cleaning or maintenance. A paint pen dot matrix lets you mark and identify your magazines. Made in the USA, it feeds reliably in AR15, M4, and M16 platforms, plus STANAG 4179–compatible rifles like the FN SCAR and IWI Tavor.
| Caliber | .300 AAC Blackout |
| Platform | AR15, M4, M16, STANAG 4179–compatible rifles |
| Capacity | 30 rounds |
| Weight | 5 oz. |
| Overall Length | 7.5 in. (max) |
| Country of Origin | USA |
| Note | Dust cover not included |
Yes. The PMAG 30 AR 300 B is designed for rifles chambered in 300 Blackout and is compatible with standard AR15, M4, and M16 platforms, as well as other STANAG 4179–compatible systems.
This magazine is dedicated to 300 Blackout. It should not be used with 5.56x45mm rifles. Using a 300 BLK magazine in a 5.56 rifle risks feed issues and safety problems.
The PMAG 30 AR 300 B has a distinct rib design and smoother upper-half texture that visually and tactilely sets it apart from other PMAGs. This intentional differentiation helps prevent dangerous cross-loading if you shoot both 300 BLK and 5.56x45mm. It is also optimized internally for the geometry of 300 Blackout cartridges.
No. The dust cover is not included with this magazine.
SKU: 200189097
Availability: In Stock
Current Stock: Out of stock
The Magpul PMAG 30 AR 300 B Gen M3 is a purpose-built magazine for 300 Blackout rifles that solves a real problem: for years, 300 BLK shooters have had to improvise with magazines designed for other cartridges. This dedicated mag eliminates that compromise. Because 300 Blackout's varied projectile weights and profiles can stress a generic magazine, Magpul engineered this one specifically around 300 BLK geometry and feeding reliability. You get a magazine built exactly for how your 300 Blackout rifle actually works.
Safety matters here too. Cross-loading ammunition between similar-looking magazines—say, grabbing a 5.56 mag by mistake and feeding it to your 300 BLK rifle—can create a dangerous situation. The PMAG 30 AR 300 B solves this with a distinctly different rib pattern and smoother upper-half texture. At a glance or feel in your mag pouch, you know exactly what you're holding. That visual and tactile difference is intentional and critical for anyone running both calibers.
Like all Gen M3 PMAGs, this magazine brings modern durability to the range and field: next-generation impact and crush-resistant polymer construction, aggressive front and rear texture for secure handling, and an easily removable slim floor plate for cleaning or maintenance. A paint pen dot matrix lets you mark and identify your magazines. Made in the USA, it feeds reliably in AR15, M4, and M16 platforms, plus STANAG 4179–compatible rifles like the FN SCAR and IWI Tavor.
| Caliber | .300 AAC Blackout |
| Platform | AR15, M4, M16, STANAG 4179–compatible rifles |
| Capacity | 30 rounds |
| Weight | 5 oz. |
| Overall Length | 7.5 in. (max) |
| Country of Origin | USA |
| Note | Dust cover not included |
Yes. The PMAG 30 AR 300 B is designed for rifles chambered in 300 Blackout and is compatible with standard AR15, M4, and M16 platforms, as well as other STANAG 4179–compatible systems.
This magazine is dedicated to 300 Blackout. It should not be used with 5.56x45mm rifles. Using a 300 BLK magazine in a 5.56 rifle risks feed issues and safety problems.
The PMAG 30 AR 300 B has a distinct rib design and smoother upper-half texture that visually and tactilely sets it apart from other PMAGs. This intentional differentiation helps prevent dangerous cross-loading if you shoot both 300 BLK and 5.56x45mm. It is also optimized internally for the geometry of 300 Blackout cartridges.
No. The dust cover is not included with this magazine.
SKU: 200189097