Lancer Systems Lancer Magazine 300 Blk 10Rd Translucent Smoke

The Lancer Systems Lancer Magazine 300 Blk 10Rd is purpose-built for shooters running heavy subsonic .300 Blackout ammunition in modern sporting rifles. Unlike standard 5.56 mags pressed into service, this 300 Blackout magazine features optimized internal geometry specifically designed to reliably feed longer, heavier bullets—especially 200-grain and heavier projectiles. If you're shooting subsonic .300 BLK out of an AR-15 platform, magazine reliability matters, and guessing with a converted .223 magazine isn't worth the malfunction risk downrange or at the range.

The translucent smoke body lets you see round count at a glance, and the included flat dark earth floor plate provides quick visual confirmation you've grabbed the right mag for the job. The magazine clearly displays .300 Blackout markings so there's no confusion in your kit. Ten-round capacity makes this a practical choice for hunting, suppressed shooting, or dedicated subsonic training where you want a magazine engineered for the cartridge you're actually running.

Built to Lancer's reputation for durability and function, this magazine delivers the feeding reliability heavy subsonic ammunition demands. Whether you're hunting with a can or running distance drills with subs, a magazine optimized for your cartridge removes one variable from the equation.

Key Features

• Optimized internal geometry for reliable feeding of 200-grain and heavier .300 Blackout subsonic rounds
• Translucent smoke body for quick visual round-count confirmation
• Included flat dark earth floor plate for fast identification
• Clear .300 Blackout markings to prevent accidental mix-ups with 5.56 magazines
• 10-round capacity suitable for hunting and range use

Specifications

Frequently Asked Questions

Will this magazine work with standard supersonic .300 Blackout loads?

This magazine is specifically designed and optimized for heavy subsonic .300 Blackout ammunition with 200-grain and heavier projectiles. While it's a .300 Blackout magazine, its internal geometry is tuned for subsonic performance, so check with Lancer or your rifle manufacturer if you plan to run supersonic loads exclusively.

Can I use this magazine in an AR-15 chambered in .300 Blackout?

Yes. This is a .300 Blackout magazine designed for AR-15 platform rifles chambered in that caliber. Make sure your rifle's magazine well is compatible with standard AR-15 magazines.

What's included in the package?

The magazine ships with a contrasting flat dark earth floor plate for easy visual identification in your loadout.

How do I avoid mixing this up with my 5.56 magazines?

The magazine features distinctive .300 Blackout markings and comes with a flat dark earth floor plate that contrasts with the translucent smoke body, making it easy to identify at a glance. Keep them stored separately in your kit to prevent confusion.