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LANCER L5AWM AR-15 MAGAZINE - 300BLK - 10 ROUND CAPACITY - 20 ROUND BODY - TRANSLUCENT SMOKE
Lancer
$23.99 - $30.69
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Lancer
LANCER L5AWM AR-15 MAGAZINE - 300BLK - 10 ROUND CAPACITY - 20 ROUND BODY - TRANSLUCENT SMOKE
The Lancer L5AWM 300 Blackout magazine delivers the perfect fusion of steel reliability and polymer durability in a California-compliant 10-round configuration — purpose-built for serious AR-15 shooters running heavy subsonic loads.
- Permanently blocked to 10 rounds using a proprietary block and rivet system
- Engineered specifically for heavy subsonic .300 Blackout ammunition (200+ grain)
- Updated internal geometry ensures reliable feeding with longer, heavier bullets
- Hybrid steel feed lips and polymer body combine strength with reduced weight
- Translucent smoke finish allows quick, easy visual round count at a glance
- Distinctive .300 Blackout molded markings prevent dangerous caliber mix-ups
Who This Is For
This magazine is ideal for California-based AR-15 and M4 platform owners who shoot .300 Blackout — especially those running suppressed setups or preferring heavy subsonic loads. It's equally suited to hunters, home defenders, and range shooters who demand feeding reliability without sacrificing compliance or build quality.
Specifications
| Brand | Lancer |
|---|---|
| Model | L5AWM (Advanced Warfighter Magazine) |
| Caliber | .300 Blackout |
| Capacity | 10 Rounds (blocked) |
| Body Capacity | 20-Round Body |
| Platform Compatibility | AR-15 / M4 |
| Construction | Hybrid Polymer Body / Steel Feed Lips |
| Finish / Color | Translucent Smoke |
| Block Type | Proprietary Block & Rivet (Permanent) |
| Compliance | California-Legal (10-Round Limit) |
Frequently Asked Questions
Can this magazine be used with supersonic .300 Blackout loads, or only subsonic?
The Lancer L5AWM 300BLK magazine is optimized for heavy subsonic ammunition with 200+ grain projectiles, but it is fully compatible with standard supersonic .300 Blackout loads as well. The redesigned internal geometry primarily benefits feeding reliability with longer, heavier bullets that standard .223/5.56 magazines can struggle to stack correctly.
Is the 10-round block permanent, and can it be removed?
Yes — the capacity restriction is permanent. Lancer uses a proprietary block secured with a rivet specifically to ensure the magazine cannot be easily converted back to its original 20-round capacity. This construction is designed to meet the requirements of states like California that restrict magazine capacity to 10 rounds.
Will this magazine fit any AR-15 lower receiver, or only specific models?
The L5AWM is designed to fit any standard AR-15 or M4 lower receiver that accepts STANAG-pattern magazines. It drops free reliably from mil-spec and aftermarket lowers alike. However, because it is chambered-specific for .300 Blackout, always ensure your upper receiver and barrel are chambered in .300 Blackout before use — never attempt to use this magazine with a 5.56/.223 upper.
- capacity:
- 10/20 Round
- caliber:
- 556 NATO
- Platform:
- AR-15
- type:
- Magazine
- color:
- Clear
- Material:
- Polymer
- CA Compliant:
- Yes
- Follower Color:
- Black