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Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine Up to 10% Off — 5 models

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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 3-Pack, MAG800-BLK-KIT1
Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 10-Pack, MAG800-BLK-KIT2
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MPMAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul - PMAG 30 AR 300 B GEN M3
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 3-Pack, MAG800-BLK-KIT1
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Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 3-Pack, MAG800-BLK-KIT1
Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 10-Pack, MAG800-BLK-KIT2
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Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 10-Pack, MAG800-BLK-KIT2
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MPMAG800-BLK-30RD
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Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MPMAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD
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Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine, Black, 1 Pack, NSN MAG800-BLK 1005-01-670-6834, MAG800-BLK-30RD

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Questions & Answers
Will this fit properly/securely in a 556 lower receiver?

Yes this will fit into a 556/223 lower receiver since they share the same lower as 300 blackout. You might run into feeding issues using this mag in a 556/223. The guiding tabs on the inside of the mag are a litle different.

by JohnL, Verified Owner, July 31, 2025
I also want to know if this will work for a Ruger mini 14 300 blackout? Thank you Can you answer this question?
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Customer Reviews
Helpful Positive Review
Quality Magazines by eldiabloblanco, Verified Owner, October 10, 2024
Having both 5.56 and .300 BLK firearms, using these dedicated .300 PMAGs eliminates any potential mix-ups. (I only use Brownell's aluminum mags for 5.56 applications - another quality magazine choice). Also, I do not question Magpul quality in any wa...
Read More...
2/2 found this helpful
Helpful Positive Review
Great Mag, fast delivery and excellent price by Michael, Verified Owner, March 21, 2025
If you have a 300 Blk this item is a must for reliable feeding.
1/1 found this helpful
Helpful Positive Review
300 acc blackout by SD, Verified Owner, November 26, 2024
Even though a 223/556 mag will hold blackout ammo having designated mags for your ammo is a great way to keep from getting mixed up
1/1 found this helpful
Helpful Positive Review
PMAG always performs! by Modolph, Verified Owner, March 4, 2025
PMAGs have never let me down. I have used them on many brands of lowers from BCA to DD. O.P. Great prices and free/fast shipping for purchases over 49 bucks right on!
1/1 found this helpful
Most Recent Reviews
More for process than the item by GC, Verified Owner, April 17, 2026
I have had the time yet to use this pack of 10 mags, but I’ve experienced the quality of Magpul magazines in the past, so I know they’ll perform as expected. What I’m impressed most with this purchase is the efficiency of Optic Planet’s ordering proc...
Read More...
Most Recent Reviews
Mag pul mags by Frank, Verified Owner, March 15, 2026
Great product highly recommended I’ve been buying this brand for years never miss Very reliable specially for competition
Read All 39 Reviews
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As low as $95.27
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Certain firearm magazines and extensions are subject to maximum capacity restrictions based on state and local laws. Currently, we are unable to sell these products to some locations. For a complete list of these restrictions, please visit our policy page.

By continuing with your purchase, you agree to adhere to all applicable laws and regulations.  

Product Info for Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine

The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles. 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. Its 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 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.image

Specifications for Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine:

Manufacturer: Magpul Industries
Magazine Capacity: 30 Round
Caliber: .300 AAC Blackout

Features of Magpul Industries PMAG 30 Gen M3, AR-15, 300 BLK, 30 Round Rifle Magazine

  • Dedicated magazine for rifles chambered in 300 BLK that supports the differing geometries found in that caliber. The result is a more reliable magazine
  • Distinct rib design and smooth upper-half texture provide visual and tactile differentiation from other PMAGs to mitigate dangerous cross-loading issues
  • Next-generation impact and crush-resistant polymer, aggressive front and rear texture, easily removable slim floor plate, and a paint pen dot matrix

Package Contents:

  • Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine

What firearm models does the manufacturer say Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine is compatible with?

The manufacturer suggests that Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine is compatible with AR-15

Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine Orderable Models

List of Orderable Models

  • Magpul Industries PMAG AR B Gen M3 .300 30 Rounds Rifle Magazine, Medium Coyote Tan, MAG800MCT , MPN: MAG800-MCT , UPC: 840815122654 , Code: 55-RM-ETQ-MAG800-MCT-30RD
  • Magpul Industries PMAG AR B Gen M3 .300 30 Rounds Rifle Magazine, OD Green, MAG800ODG , MPN: MAG800-ODG , UPC: 840815150916 , Code: 55-RM-ETQ-MAG800-ODG-30RD
  • Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MAG800-BLK-30RD , MPN: MAG800-BLK , UPC: 840815117223 , Code: 55-RM-ETQ-MAG800-BLK-30RD
  • Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 3-Pack, MAG800-BLK-KIT1 , MPN: MAG800-BLK-KIT1 , Code: 55-RM-ETQ-MAG800-BLK-30RD-KIT1
  • Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine, 10-Pack, MAG800-BLK-KIT2 , MPN: MAG800-BLK-KIT2 , Code: 55-RM-ETQ-MAG800-BLK-30RD-KIT2

Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MPMAG800-BLK-30RD , MPN: MPMAG800-BLK-EDEMO , Code: 55-RM-ETQ-MPMAG800-BLK-30RD-EDEMO-IN-B
  • USED, Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MPMAG800-BLK-30RD , MPN: MPMAG800-BLK-EDEMO , Code: 55-RM-ETQ-MPMAG800-BLK-30RD-EDEMO-OT-A
  • USED Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MPMAG800-BLK-30RD, EDEMO1, Used, Condition Like New , MPN: MPMAG800-BLK-EDEMO1 , Code: 55-RM-ETQ-MPMAG800-BLK-30RD-EDEMO1
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