The ProMag COL27 Standard 10rd 22 LR Fits Colt M4 Black DuPont Zytel Polymer magazine offers a dependable rimfire feeding solution for your Colt-branded M4 in .22 LR. Built around a rugged DuPont Zytel polymer body, this detachable magazine uses an injection-molded follower and a chrome silicone wire spring to maintain consistent tension and smooth cycling over extended range sessions.

This 10-round magazine is ideal for training, plinking, and general range use where reliability and manageable capacity matter. Its polymer construction keeps weight down while resisting common gun-care oils and solvents, making maintenance straightforward. Designed specifically for Colt M4 .22 LR platforms, it is not compatible with Ciener or G.I style .22 conversion rifles. ProMag’s focus on practical design and durable materials makes this magazine a solid addition to any rimfire AR-style setup.

Key Features:

• Manufacturer: ProMag
• Model: COL27 Standard
• Caliber: .22 LR
• Capacity: 10 Rounds
• Product Type: Detachable Rifle Magazine
• Brand Fit: Colt
• Model Fit: M4
• Construction: DuPont Zytel Polymer With Chrome Silicone Wire Spring