Lancer Systems L5AWM 30-Round AR-15 Magazine - 300 BLK - Smoke

Manufactured by Lancer Systems
SKU: 999-000-4280-01
MPN: 999-000-4280-01
Manufactured by Lancer Systems
15 Reviews

Out of Stock

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



NOTE:These magazines are optimized for subsonic 300BLK ammunition which have a wider and more forward-oriented ogive on the projectile. If you are shooting lightweight supersonic 300BLK ammunition (<150gr), we recommend using a standard .223/5.56 magazine, as the geometry of most supersonic cartridges more closely mimics that of a .223/5.56 cartridge.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 subsonic 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.Features:
  • 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
  • Round count markers
  • Weight: 4.48 oz
  • Made in the U.S.A.
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BrandLancer Systems
Caliber Gauge300 Blackout
Magazine Capacity30
PlatformAR-15 Magazines
Weight4.48 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

15 reviews

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These are very high quality magazines.

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This is a very nice magazine. It has feed all 300 BO ammo I have feed it reliably. These mags really ooze quality. It is no surprise that HK is shipping Lancer made mags out with several of their guns now The steel feed lips are perfectly executed and being able to see your ammo is a huge plus. There are also markings every 10 rounds so you can instantly see how many rounds you have left. Very easy to get the advertised amount of rounds into the mags. These are my go to mags now and I like that they are designated for 300 BO.

Much Better , smoother feeding in 300 BLK with Sub and Super ammo.

by -

The 300 BLK version of the Lancer is worth the money over your existing, older 5.56 Lancers if you use them for both the 5.56 and 300 BLK.
Lancers are my favorite mag for 5.56... and now the 300 BLK version is my favorite for 300 BLK.
We all know how snug subsonic fat bullets feel in mags made for 5.56...
The narrowed "splines" inside make a huge difference when loading Sub's and Super's... you can literally feel it, even when manually loading them.
Enough so that I couldn't wonder if smooth , consistent feeding was being hindered.

I will be buying more 300 BLK Lancers for sure.

So far, so good

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My first purchase of Lancer mags. I like the smoke color allowing view of rounds inside and the round count marking on the outside of the magazine. I’ve only had them to the range once so far, but zero malfunctions.

As always great service and friendly

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Great mag, fast shipping, good princes

Great magazine company

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Lancer > pmag. Nuff said

Lancer 300 Blackout (smoke)


Great mag. Have yet to shoot from it but the quality is A+ Hoping Lancer creates the clear version for this mag!

Lancer magazines are wonderful

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These are great I love them

lancer systems

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very good mags worth every penny no cycling or feed issue whatsoever. will definitely buy again and would recommend

Excellent 300 Blackout Magazines

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Lancer makes an excellent 300 BO magazine
Excellent quality, seems very durable and feeds great

Great mags

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They work with boring reliability. 👍🏼