MAGPUL PMAG 30- 300 Blackout- GEN 3- REBUILD KIT

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300 BLK
Body Material:
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MAGPUL PMAG 30- 300 Blackout- GEN 3- REBUILD KIT

  • Optimized for 300 AAC Blackout, the PMAG 30 AR 300 B retains all the GEN M3 features adding a distinct rib design and smoother upper texture to set them apart from other PMAGs for quick visual and tactile identification. This AR mag is easy to disassemble and clean for regular maintenance and won't fail you in the field.
  • Dedicated 300 Blackout magazine
  • Impact and crush resistant polymer construction
  • Optimized internal geometry for 300 BLK
  • Anti-tilt, self-lubricating follower
  • Long life USGI-SPEC stainless steel spring
  • Over-travel insertion stop
  • Distinct rib design and smoother upper texture for easy identification


A fully disassembled Magpul PMAG rebuild kit, or magazine repair kit. All magazine rebuild kits are disassembled to its basic parts, in a non-functional state that cannot be used in a firearm. They can be used to replace broken parts in old magazines that are legally owned, or reassembled for use when/where legal to do so.


Magazine rebuild kits ship to all states except for California. It is up to the consumer to know their state's laws concerning high capacity magazines and all restrictions that have been put in place. Magged Supply LLC, its owners, officers, and employees are not liable should you purchase magazine rebuild kits and use them in a way not in accordance with your state's laws.

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  • 5
    Excellent Product, Excellent Price

    Posted by John Franklin on Mar 22nd 2022

    I was so happy to find these in stock, they shipped fast, and were exactly what is was expecting. Thank you Magged Supply!

  • 5
    Fast shipping

    Posted by D.Dempsey on Mar 7th 2022

    I didn't realize they were based in colorado. But they shipped fast , mags arrived in 2 days from the day I ordered. Great service. Cool sticker came with em. Will be buying here again for sure. P.s. stay away from. Badgermountain , ordered from them in September and still haven't heard anything.

  • 5
    300 blackout rebuild mags

    Posted by Chuck on Jan 9th 2022

    Magpul rebuild mags are outstanding magazines.

  • 5
    Great product

    Posted by Jason on Jan 21st 2021

    A great product from a great manufacturer, shipped very quick and arrived earlier than anticipated. Overall very pleased with the product.

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