ProMag AR-15 5.56mm / .223 Rem 42rd Polymer Extended Magazine

Overview

The ProMag AR-15 42-Round Extended Magazine is designed to provide increased ammunition capacity and dependable performance for AR-platform rifles. Constructed from durable DuPont Zytel-based polymer and equipped with premium internal components, this magazine delivers reliable feeding and long service life for range training, recreational shooting, and tactical applications.

Key Features

• 42-round extended capacity
• Compatible with AR-15 and M16 rifles chambered in .223 Remington and 5.56 NATO
• Proprietary DuPont Zytel polymer magazine body for lightweight durability
• Injection-molded polymer follower for smooth cartridge presentation
• Heat-treated chrome silicon wire spring for enhanced reliability
• Extended design reduces reload frequency during shooting sessions
• Made in the USA
• Black finish

Specifications

• Caliber Compatibility: .223 Remington, 5.56x45mm NATO, .300 AAC Blackout
• Capacity: 42 Rounds
• Material: DuPont Zytel Polymer
• Follower Type: Injection-Molded Polymer
• Spring Material: Heat-Treated Chrome Silicon Wire
• Color: Black
• Firearm Type: Rifle
• Fits: AR-15, M16, FN SCAR 16/16S, FN FS2000, FN F2000, FN 15, Sig Sauer SIG516, Sig Sauer M400, Sig Sauer MCX, Sig Sauer SIG556, HK416, HK MR556A1, Remington R-15, Bushmaster ACR, FightLite SCR, FightLite MCR, SA80, Beretta ARX160

MPN: COL-A16B
UPC: 708279012679

Applications

Ideal for target shooting, range training, recreational shooting, competition use, and tactical training where increased magazine capacity can help minimize reload interruptions.

Additional Features

The lightweight polymer construction helps reduce overall firearm weight while maintaining strength and durability. Its extended capacity design offers shooters more trigger time between magazine changes, making it an excellent addition to any AR-platform rifle setup.