The L5AWM 300BLK magazine has been specifically engineered for use with heavy subsonic .300 Blackout ammunition, particularly with 200+ grain projectiles. The updated internal magazine geometry allows these longer heavier bullets to stack properly, which increases 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.
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.
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- Specifically engineered for 200+ grain subsonic ammunition
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- Stamped with 300 Blackout markings for caliber organization
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- Contrasting FDE floorplates provide instant visual identification
About the L5 Advanced Warfighter Magazine®
Lancer set out to design a better 5.56 magazine; one with the reliability of steel, durability of polymer and weight of aluminum – the L5AWM. The magazine design includes a one-piece, wrap-around steel feed lip assembly and an aggressive surface texture to create the ultimate hybrid magazine tough enough for military, LE and commercial use. The L5AWM is compatible with modern weapon systems, including M4/M16/AR15, SCAR16, HK416, ARX160, SIG556, ARC, IWI Tavor, SA80, and many more.
Designed, tooled, manufactured, and assembled in the USA.
Michael W Slinkard –
I have used standard AR15/M4 type magazines for my 300AAC and have problems with feeding a round into the chamber. The round gets hung up on the lip of the magazine and causes a stoppage. Of course they work but the chance of a stoppage is about 1 to 2 rounds per magazine at times. I am using top shelf magazines. I tried a couple of the Lancer L5AWM 300BLK specific magazines and had zero, yes zero stoppages round after round. I purchased 3 of the 300BLK specific magazines for myself and I want more. You will most definitely see an improved and reliable feeding of each and every round fired in your 300BLK caliber AR platform rifle. I HIGHLY, HIGHLY RECOMEND THESE MAGAZINES FOR ANY PERSON SHOOTING THE 300BLK IN AN AR15/M4 PLATFORM RIFLE. These magazines have 300BLK on the sides and bottom of the magazines but it is a wise choice to insure that these magazines are marked in a highly visible manner. Get yourself a couple of these and you will see the difference same as I have. Michael W Slinkard
Todd P –
Never an issue, reliable as expected.