Sure, most 300 Blackout rifles and pistols work with most 5.56 magazines. Most 5.56 magazines work with most .300 BLK rounds. But, does your .300 BLK PDW, rifle or pistol and the ammo you have today work with your 5.56 magazine? Is the ammo you purchased last year, the same .300 BLK you purchased last week, or will it be the same next year? Maybe. Probably. Maybe and Probably might work just fine at the range, with even pulls, calm shooting. What about at 1:26 am when you hear your window break? What about when you are in your truck, and you see that varmint to shoot? What about when you are not home and your wife needs the personal defense of the .300 Blackout pistol you purchased just for that time you never wanted her to use it? Maybe does not count when your adrenaline is running high, and your palms are sweating and the lighting is not the best.
The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles chambered in 300 Blackout®. Since its inception, 300 BLK shooters have had to use a magazine designed for another cartridge, limiting its ultimate performance and compatibility. One of the key features of 300 BLK 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 BLK 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 BLK rifle. When using 5.56x45mm mags, the potential to chamber and fire a 300 BLK 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. Along with optimized 300 Blackout performance, the PMAG 30 AR 300 B incorporates all the GEN M3 features such as our next-generation impact and crush resistant polymer, aggressive front and rear texture, an easily removable slim floor plate, a paint pen dot matrix for marking and identification, and a dust/impact cover.
Made in U.S.A.
PURPOSE-BUILT MAGAZINE ONLY FOR 300 BLK
Dedicated magazine for rifles chambered in 300 BLK that supports the differing geometries found in that caliber. The result is a more reliable magazine
DESIGNED WITH VISUAL & TACTILE DIFFERENCES
Distinct rib design and smooth upper-half texture provide visual and tactile differentiation from other PMAGs to mitigate dangerous cross-loading issues
INCORPORATES THE SAME FEATURES AND PERFORMANCE OF THE GEN M3 LINE
Next-generation impact and crush-resistant polymer, aggressive front and rear texture, easily removable slim floor plate, a paint pen dot matrix and a dust / impact cover