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Lancer L5 Advanced Warfighter 10 Rounds Magazine Up to 23% Off — 2 models

Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
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Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
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Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
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Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
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Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
5 of 6 images
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03
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Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03

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Questions & Answers
Customer Reviews
Most Recent Reviews
200+ grain is required by Missing Link, Verified Owner, February 10, 2026
I purchased these magazines to utilize with a black and FDE 300blk build with intentions to use 110gr Hornady Black ammunition. After experiencing feeding issues, I reached out to the manufacturer and was given some interesting information which was ...
Read More...
Most Recent Reviews
10 rd lancer by Randy, Verified Owner, November 25, 2025
Excellent mag, works as it should.Use the 10 rd for zeroing on bench rest. Have 30 rd also for 300 black.
Most Recent Reviews
solid but expensive by pl893, Verified Owner, August 30, 2025
Sold mag but expensive compared to other sales..but OP were the only ones to have any in stock. Other orders and products not so lucky. Long waits for shipping, instock items not truly instock.. ships weeks later.. shipping and processing need work. ...
Read More...
Most Recent Reviews
Engineering perfection. by LB, Verified Owner, April 13, 2025
Metal where it's needed for strength. Hard weight saving plastic elsewhere. Feeds .300 BLK flawlessly. Some standard AR magazines won't. Easy bottom plate removal if you need to do so. Great choice when using optics as the magazine won't bottom ou...
Read More...
Read All 4 Reviews
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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.  

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Product Info for Lancer L5 Advanced Warfighter 10 Rounds Magazine

Specifically engineered for use with heavy subsonic .300 Blackout ammunition (200+ grain), the Lancer L5AWM® 300BLK magazine features an updated internal geometry which allows longer heavier cartridges to stack properly, increasing feeding reliability when compared to a traditional .223/5.56 magazine. The outside of the mag body is molded with distinctive .300 Blackout markings and the magazine ships with a contrasting flat dark earth floor plate for easy visual identification.image

NOTE: These magazines have been specifically designed and optimized to alleviate the stacking and feeding issues commonly experienced when running 200+ grain subsonic .300BLK cartridges in standard .223/5.56 magazines. If you are shooting lightweight supersonic .300BLK ammunition (<150gr), we recommend using a standard .223/5.56 L5AWM magazine.

Specifications for Lancer L5 Advanced Warfighter 10 Rounds Magazine:

Manufacturer: Lancer Systems
Fabric/Material: Steel
Magazine Capacity: 10 Round
Caliber: .300 AAC Blackout
Gun Make: AR Platform
Gun Model: AR-15
Gun Type: Rifle
Quantity: 1
Condition: New
Country of Origin: USA

Package Contents:

  • Lancer L5 Advanced Warfighter 10 Rounds Magazine

Lancer L5 Advanced Warfighter 10 Rounds Magazine Orderable Models

List of Orderable Models

  • Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03 , MPN: 999-000-4280-03 , UPC: 738435619480 , Code: 7UD-RM-KR10-999-000-4280-03-10RD
  • Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06 , MPN: 999-000-4280-06 , UPC: 738435619510 , Code: 7UD-RM-KR10-999-000-4280-06-10RD

Lancer L5 Advanced Warfighter 10 Rounds Magazine Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03 , MPN: 999-000-4280-03-EDEMO , Code: 7UD-RM-KR10-999-000-4280-03-10RD-EDEMO-RE-B
  • Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Clear, 999-000-4280-09 , MPN: 999-000-4280-09 , UPC: 738435619541 , Code: 7UD-RM-KR10-999-000-4280-09-10RD
  • Lancer Systems L5 Advanced Warfighter Magazine, Dark Earth - 999-000-2320-42 , MPN: 999-000-2320-42 , UPC: 738435618728 , Code: 7UD-RM-KR10-999-000-2320-42-10RD
  • USED, Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Opaque Black, 999-000-4280-06 , MPN: 999-000-4280-06-EDEMO , Code: 7UD-RM-KR10-999-000-4280-06-10RD-EDEMO-SC-B
  • USED Lancer Systems L5 Advanced Warfighter Magazine, .300 Blackout, 10-Round, Translucent Smoke, 999-000-4280-03, EDEMO2, Used, Condition Like New , MPN: 999-000-4280-03-EDEMO2 , Code: 7UD-RM-KR10-999-000-4280-03-10RD-EDEMO2
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