CMMG MkW-15 Lancer L5 .458 SOCOM 10-Round Magazine

The CMMG MkW-15 Lancer L5 magazine is designed for AR-15-type firearms chambered in .458 SOCOM. It features a polymer body, metal feed lips, and a 10-round .458 SOCOM capacity in a black finish.

This CMMG-modified Lancer magazine uses feed-lip geometry intended to support .458 SOCOM ammunition without machining or weakening the metal feed lips. The magazine is based on a modified 30-round 5.56 magazine and may still hold 5.56 ammunition; it is configured to function with 10 rounds of .458 SOCOM.

Key Specifications

• The magazine is chambered for .458 SOCOM.
• It has a stated capacity of 10 rounds for .458 SOCOM.
• The magazine is intended for AR-15-type firearms.
• The body uses impact-resistant polymer.
• The magazine features hardened metal feed lips.
• An anti-tilt follower supports consistent cartridge presentation.
• The magazine includes a stainless steel spring.
• The finish and color are black.
• The listed dimensions are 1.25 x 4.85 x 8.25 inches.
• It is made, assembled, and tooled in the USA, with the magazine made by Lancer and modified by CMMG.

With its slim polymer body, metal feed lips, textured exterior, and .458 SOCOM-specific configuration, this magazine provides a purpose-built option for compatible AR-15 platforms and range or field use where dependable equipment fit matters.

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