MCK Magazines, Drums & Magazine Carriers Guide | CAA Gear Up

What high-capacity magazines, drum magazines, and magazine carriers are compatible with MCK conversion kits?

CAA Gear Up offers a complete range of high-capacity stick magazines, 50-round drum magazines, standard capacity replacement mags, and integrated spare magazine carriers engineered for Micro Conversion Kit (MCK) platforms. Whether utilizing the built-in front magazine grip on Gen 1/2/3 chassis or mounting rear carriers on the EVO platform, keeping extra ammunition on hand ensures maximum runtime at the range.

🔍 Magazines & Carrying Options Matrix

Review compatible magazine options, capacity specifications, and pricing below:

Product / Carrier TypePriceCapacity & Caliber SpecsChassis Compatibility & Key Highlights
Glock Drum Magazines (RWB)$69.95 (MSRP $129.99)50-Round (9mm / .40 S&W) or 40-Round (.45 ACP).Fits double-stack Glock handguns inside MCK Gen 1, Gen 2, Gen 3, and EVO chassis.
Glock Extended Stick Magazines (RWB)$19.9933-Round (9mm), 31-Round (.40 S&W), 26-Round (.45 ACP).High-strength polymer with steel insert; ideal length for MCK front mag holder.
Standard Capacity Glock Magazines$11.99 – $14.99 (5-Pack $49.95)15-Round or 17-Round (9mm Luger).Factory-spec feeding for standard Glock 19/17 flush or extended setups.
EVO Rear Spare Magazine Carrier$34.99Mounts 1x standard or extended pistol magazine.Attaches to the rear lower rail/housing of MCK EVO platforms.

⚙️ Detailed Breakdown of Primary Products & Features

1. High-Capacity Drum Magazines ($69.95)

  • Continuous Firepower: Features a spiral internal track with heat-treated chrome silicon wire springs for reliable 50-round 9mm or .40 S&W feeding.

  • Chassis Clearance: Designed to seat cleanly into the handgun magwell inside the MCK chassis without contacting the forward handguard or side Picatinny rails.

2. Extended Stick Magazines ($19.99)

  • Range Ready: 33-round 9mm stick magazines provide extended capacity while maintaining a narrow vertical profile.

  • Steel-Reinforced Polymer: Built with steel lining inside high-impact polymer housing to prevent feed-lip spread under fully loaded spring tension.

3. Integrated Front Spare Magazine Holder (MCK Gen 1, Gen 2, Gen 3)

  • Front Mag Grip: Built directly into the forward magwell area of the MCK chassis.

  • Friction Release Catch: Secures a secondary magazine in the forward grip position for lightning-fast tactical reloads.

4. Rear Spare Magazine Carrier for MCK EVO ($34.99)

  • Dedicated EVO Mount: Secures directly to the rear lower frame of the MCK EVO chassis.

  • Balanced Weight Distribution: Moves spare ammunition weight toward the rear of the platform for improved pointability and faster shoulder transitions.

💡 PRO TIP: When using the front spare magazine holder on MCK Gen 1 or Gen 2 chassis, ensure the magazine is inserted until the internal friction lock or catch engages. To release, pull down firmly while canting slightly forward!