Lancer Systems L5AWM 20-Round Magazine - 300 BLK - Black

Manufactured by Lancer Systems
SKU: 999-000-4280-05
MPN: 999-000-4280-05
Manufactured by Lancer Systems
3 Reviews

Out of Stock

NOTE: Limit 3 per household. Quantities exceeding 3 will not allow checkout.

Magazines considered High Capacity are controlled by the ATF and/or local jurisdictions are not available for purchase/shipment in all areas.



From concept through production, Lancer Systems engineer solutions that make a difference. Whether in the hands of service members or commercial customers, their products will provide a definitive advantage. Lancer designs, develops and tests all advanced weapons and components in-house.

The L5AWM Magazine is built with the reliability of steel, durability of polymer, and weight of aluminum. The magazine design includes a one-piece, wrap-around, steel feed lip assembly and an aggressive surface texture to create the ultimate hybrid magazine.

The constant curve internal geometry of the Advanced Warfighter Magazine utilizes an anti-tilt follower for reliable feeding of 300 AAC Blackout ammunition. The body and component materials are corrosion and chemical resistant, passing military chemical testing.

NOTE: The L5AWM is compatible with modern weapon systems, including M4/M16/AR, SCAR16, HK416, ARX160, and SIG MCX.


  • Hardened steel feed lips
  • Impact resistant polymer body
  • Top of magazine catch is steel
  • Non-tilt follower
  • Constant curve internal geometry
  • Stainless steel spring
  • Aggressive texturing on body for positive grip
  • Slim body design
  • Slide on bottom, easy to disassemble
  • Weight: 3.52 oz
  • Made in the U.S.A.
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BrandLancer Systems
Caliber Gauge300 Blackout
Magazine Capacity20
PlatformAR-15 Magazines
Weight3.52 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

3 reviews

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perfect addition to 300 blkout

by -

after few hundred rounds the mag functions flawless,

I'm not gonna lie...

by -

I was skeptical. I took the advice of Karl from Tactical Rifleman that these mags were different.<br><br>Every magazine manufacturer claims to be the truth, where their geometry is somehow more refined to facilitate better 300 Blackout functionality, reliability, and blah blah blah.<br><br>Ok so yeah, this 20 rnd mag is for real. It not only looks great, but it runs good. I ran it as hard as I could without the capability to go full automatic.<br><br>I'll be buying more.

Quit reading reviews and BUY IT!


I purchased one of the 20 round options to test the quality of Lancer’s product since I had never used them before... Needless to say, I’m ordering 5 more. The design and function are elegantly flawless. Snug fit and not a single feed or loading problem... yet