ETS Group GLK2118 18-Round .45 ACP Magazine for Glock 21/30/41

The ETS Group GLK2118 delivers increased capacity and enhanced visibility for Glock .45 ACP pistols. This 18-round magazine extends standard capacity while maintaining reliable feeding and function. Clear polymer construction allows instant visual confirmation of remaining ammunition count.

What Makes This Different

Unlike traditional steel or opaque polymer magazines, the GLK2118 features translucent polymer construction that provides immediate visual ammunition verification. The magazine extends capacity from standard 13-round factory magazines to 18 rounds of .45 ACP ammunition. Advanced polymer formulation resists cracking under repeated loading cycles while maintaining dimensional stability across temperature extremes. Drop-free design ensures consistent magazine changes during rapid reloading sequences.

Key Features

• 18-round capacity increases firepower by 5 rounds over standard Glock magazines
• Clear polymer body allows instant visual ammunition count verification
• Compatible with Glock 21, 30, and 41 pistols in .45 ACP caliber
• Impact-resistant polymer construction withstands repeated drops and impacts
• Anti-tilt follower design prevents feeding malfunctions and jams
• Heat-treated steel spring maintains consistent tension through thousands of cycles
• Textured grip panels provide secure handling during magazine changes

Range testing demonstrates consistent feeding across various .45 ACP loads including hollow points and full metal jacket ammunition. The extended capacity proves advantageous for competitive shooting disciplines, duty applications, and home defense scenarios where ammunition capacity matters. Temperature cycling from -20°F to 140°F shows no adverse effects on magazine function or polymer integrity.

Technical Specs

• Capacity: 18 rounds of .45 ACP ammunition
• Material: High-impact clear polymer body with steel internals
• Compatibility: Glock models 21, 30, and 41
• Overall Length: Approximately 5.5 inches
• Weight: 4.2 ounces empty
• Spring: Heat-treated steel with anti-corrosion coating
• Follower: Anti-tilt polymer design
• Base Pad: Removable polymer with grip texture

The GLK2118 represents a practical upgrade for shooters requiring additional capacity without sacrificing reliability. Extended magazines like this model provide tactical advantages in competitive and defensive applications where every round counts.