NEW Lancer Systems .300 Blackout Magazines

Just like that – on the background of total solar eclipse, Lancer Systems has announced their new AR-15 magazines optimized and dedicated for use with the .300 Blackout cartridge. The new magazine is called L5AWM-B. It is based on their L5AWM magazine design. Probably the added “B” in the new magazine’s name stands for Blackout.

As expected from a .300 Blackout version of a 5.56 magazine, its internal geometry is redesigned to allow a wider range of projectiles to be loaded into it. Some .300 Blackout bullets may cause issues when loaded into 5.56/.223 magazines because of the front guide ribs of the 5.56 magazines.

The new magazine is not yet listed on Lancer Systems’ website. No pricing information has been released either. All is known is that these new magazines are available for distributor pre-order.

At the beginning of this year, Magpul has announced about their dedicated .300 Blackout magazine. In case of Magpul, the MSRP for their .300 BLK magazine is only a dollar more ($15.95 vs $14.95) than the price of their comparable generation 5.56/.223 magazine. I think Magpul’s new magazine announcement is probably what made Lancer Systems to offer their version of the .300 BLK magazine to get a piece from the .300 BLK magazine market pie, too. That being said, I think the pricing strategy should also be identical. Right now the MSRP for Lancer Systems L5AWM magazine is $21.99 on their website. So I think the MSRP of L5AWM-B should not exceed $24 or so.

Hrachya H

Being a lifelong firearms enthusiast, Hrachya always enjoys studying design, technology and history of guns and ammunition. His knowledge of Russian allows him to translate and make Russian/Soviet/Combloc small arms related information available for the English speaking audience.
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  • Michael R. Zupcak

    Just watch, special bolts will be next. “Although the 5.56 is compatible with .300 BLK, the 5.56 bolt is sentient and can sense the .300 BLK ammunition. This hurts the 5.56mm bolt’s feelings and can result in malfunction, costing the operator precious seconds.”

    • Michael Gallagher

      And it has to be quieter than a 5.56 bolt, so we need a special coating. That is important with the .300BLK.

  • JumpIf NotZero

    lol, of course Lancer makes their mags more expensive than Magpuls. Because, eww gross money, don’t want any of that, it has germs on it!

    • Edeco

      Having had to watch helplessly as kid as the supply of assault mags constricted, I have a thing against plastic lips. Janet Reno had lifeless eyes, like a doll’s eyes… I’ll never put on a lifejacket again.

    • Frank

      There’s no way a magazine with a special durable translucent polymer and a steel reinforcement could be more expensive than a solid polymer one. They just make it more expensive cause evil.

    • Cal S.

      Wait, is this the same guy that worships $1,500 AR-15s?! 😉

  • Spencerhut

    Lancer makes about the best AR mag you can get these days. Nice to see the new offering, but I’ll stick with loading bullets in my .300BO that work well in my existing AR mags. Last thing I need is more freaking mags . . . especially when they look just like another mag.

    Wonder if the 300BO mags will run 100% with .223/5.56 . . . .

    • nova3930

      yep. pmags spray painted with “300” on them work just fine….

      • Timmah_timmah

        Prefer Lancers with an ID band myself, but to each his own

    • Black mags for Blackout — any other color means 5.56. 😉

  • Sianmink

    Not sure this is necessary. Lancers were already considered to be the best ones to use for a wide range of .300BLK loadings to begin with. Aside from changing the external texture to be distinct from their standard mags, I don’t see the point. They’re already perfect.

    • Timmah_timmah

      My thoughts as well. Is this really needed? Has anyone here experienced issues with Lancers? I have not. Including subs up to 220 gr. Never run 240 gr… is that what this is all about? If so, I’m good. Thanks.

      • AndyT

        My leatherhead 240’s run flawlessly in the regular lancer mags

  • john huscio

    Lancer makes the best AR mags on the market……at least until the Steyr rs556 mags are in wide circulation on the market….

    • int19h

      What’s so special about RS556 mags?

      • john huscio

        Made to the same standard and with the same materials as aug mags, which are the most durable rifle mags ever created

        • int19h

          More durable than, say, AK74 mags?

        • tsh77769

          The pictures I see show them as just being Magpul P-mags.

  • Sabrina Gray

    Wasn’t that supposed to be one of the draws of the .300 that you wouldn’t have to worry about mags?

    • Timmah_timmah

      I for one have never had a single issue with “normal” Lancers and 300 blackout up to 220 grain.

    • Berryamendmentandcream

      I think this is a sign of a stagnating/oversaturated market unfortunately.

  • Lee Enfield

    I thought that what the 7.62×40 L5AWM version was recomeneded for 300BO.
    Is this new thing just a relabel of the 7.62×40?

    • Christopher Lott

      I asked Lancer Systems on facebook about this, and their response indicated that Wilson Combat modified L5AWM mags to produce the 7.62×40 mags they sell. The L5AWM-B mags are being produced with different molds in-house by Lancer so no modification/deribbing is required. I wonder if they are paying Wilson Combat for this intellectual property.

      • Lee Enfield

        Hey thanks for the reply. Kinda as I thought, just the same de-milled rib. Any future purchases for either would just be based on price.