Lancer Systems L5AWM® .300 Blackout – Opaque Black – 30 Round – 999-000-4280-04
The Lancer Systems L5AWM® .300 Blackout (999-000-4280-04) is a 2026-spec magazine purpose-built to solve the unique feeding challenges of the .300 AAC Blackout platform. While standard 5.56mm magazines often struggle with the wider ogive of heavy subsonic projectiles, this magazine features an updated internal geometry specifically engineered to allow 200+ grain cartridges to stack properly. This optimization ensures a consistent, reliable feed-path that prevents the "binding" common in converted 5.56 mags. Finished in Opaque Black with a matte texture, the mag body includes distinctive molded ".300 Blackout" markings and a contrasting Flat Dark Earth (FDE) floor plate for immediate visual caliber identification—a critical safety feature to prevent cross-loading with 5.56mm rifles.
Following Lancer’s legendary hybrid architecture, the 999-000-4280-04 utilizes hardened steel feed lips permanently wrapped around a high-impact polymer body. This design provides the indestructible feed-lip tension of a metal magazine with the lightweight, dent-resistant durability of polymer. For 2026, the magazine continues to feature a non-tilt follower and a stainless steel spring for maximum longevity under compressed storage. Compatible with the AR-15, M4, SIG MCX, and Honey Badger platforms, this 30-round magazine is the professional’s choice for shooters running subsonic suppressed loads who demand 100% mission-critical reliability.
Includes: (1) Lancer L5AWM 30-Round .300 BLK Magazine – Opaque Black with FDE Floor Plate.
Key Features
- Optimized for 200gr+ Subsonics: Internal ribbing and geometry are specifically widened to accommodate the forward ogive of heavy .300 BLK projectiles.
- Hardened Steel Feed Lips: One-piece steel wrap-around design ensures the lips never crack, spread, or deform, even when stored fully loaded for years.
- Visual Safety ID: Features distinctive molded caliber markings and a contrasting FDE floor plate to prevent catastrophic ammunition mix-ups.
- Hybrid Material Tech: Combines the chemical and impact resistance of proprietary polymer with the structural rigidity of steel in critical wear areas.
- Non-Tilt Follower: Constant-curve internal geometry and a high-stability follower ensure smooth, tilt-free feeding from the first round to the last.
- Professional Matte Finish: The opaque black finish provides a low-glare, tactical look with aggressive texturing for secure handling with gloves.
Product Specifications
- Brand: Lancer Systems
- Model: L5AWM® .300 Blackout
- SKU / MPN: 999-000-4280-04
- Caliber: .300 AAC Blackout (Optimized for Subsonic)
- Capacity: 30 Rounds
- Material: Hardened Steel / Impact Resistant Polymer
- Finish: Opaque Black (Matte)
- Weight: 4.48 oz
- UPC: 738435619497
