SKU: 60728552108

Magpul PMAG® 30 AR 300 B GEN M3®, 300 BLK

Sale price$1575.00 Regular price$1750.00
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Magpul PMAG® 30 AR 300 B GEN M3®, 300 BLKThe PMAG 30 AR 300 B GEN M3 is a purpose designed magazine for rifles chambered in 300 Blackout (300 BLK). 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

The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles chambered in 300 Blackout® (300 BLK). 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 of 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, and a paint pen dot matrix for marking and identification.

Caliber .300 AAC Blackout
Platform AR15, M4, M16
Capacity 30 rounds
Weight 5 oz.
Length, max 7.5 in.
Compatibility Wide compatibility with most 'STANAG 4179' platforms such as the AR15/M4, FN SCAR, IWI Tavor, and others
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 60728552108

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B.Nicole
Birmingham, US
★★★★★ 5
My Go-To Sublimation Paper — Flawless Results Every Time
Size: 8.5"x11", Size: 8.5"x11"
This is hands down the best sublimation paper I’ve used and the only one I continue to buy. I get a perfect transfer every single time—no fracturing, no fading, and no uneven results. The paper dries fast, which makes my workflow so much smoother, especially when I’m producing items in batches. I use this regularly to make air fresheners and tote bags for my small business, and the color payoff is always vibrant and crisp. The transfer rate is excellent, and it works beautifully on light-colored, high-quality polyester and other sublimation-ready surfaces. If you’re a small business owner or crafter who values consistency, quality, and ease of use, this paper is absolutely worth it. I highly recommend it and will continue to repurchase.
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Reviewed in the United States on January 24, 2026
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Jimmy
Waukegan, US
★★★★★ 5
Best Sublimation Paper
Size: 8.5"x11"
I’ve been using A-Sub paper for my sublimation projects, and it is easily one of the best. The ink dries almost instantly once printed, so I don’t have to worry about smudging the design or getting those annoying "pizza wheel" marks from the printer rollers. The paper itself feels substantial and doesn't tear or curl easily. One of the biggest wins for me is that it never jams; it feeds through perfectly every time, saving me the frustration of wasting expensive ink and paper. When I go to press my designs, the ink releases almost completely, leaving very little behind on the paper and putting all that color onto the project. The final results look super professional, with colors that are vibrant and sharp rather than looking faded or dull. It has worked perfectly for everything I’ve tried so far, and if you want a reliable paper that gives you consistent, high-quality results, this is definitely the one to get.
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Reviewed in the United States on February 25, 2026
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Nadiagne
New York, US
★★★★★ 5
Ideal for sublimation beginners.
Size: 8.5"x11"
Asub sublimation paper has been excellent for my projects. The ink transfer is very good, the colors are vibrant and defined, and it dries quickly. It has helped me achieve clean and professional results, even as a beginner. Without a doubt, it's a reliable, high-quality paper for sublimation.
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Reviewed in the United States on February 15, 2026
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Chiller Leonard
Phoenix, US
★★★★★ 5
Excellent works great and I’m bang for your buck
Size: 8.5"x14"
I love this paper. It prints, nice and clear I will be buying more.
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Reviewed in the United States on April 30, 2026
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Fe Oyekola
West Palm Beach, US
★★★★★ 5
Very good for sublimation
Size: 8.5"x11"
Intact and very good for my sublimation
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Reviewed in the United States on May 25, 2026

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