CAA Gear Up provides a full line of OEM replacement parts, spare components, and maintenance hardware designed to keep your Micro Conversion Kit (MCK) operating at peak reliability. Whether replacing worn charging handles, upgrading ejection ports, or maintaining internal retention pins and barrel shrouds, genuine CAA replacement parts ensure factory-spec fitment across Gen 1, Gen 2, Gen 3, and EVO platforms.
Review key OEM replacement components, base pricing, and platform fitment:
| Component / Spare Part | MSRP / Price | Primary Function & Highlight Specs | Platform Compatibility |
| MCK Front Barrel Shroud | $30.00 | Front shroud replacement for damaged or worn barrel exit housings. | Gen 1, Gen 2, Gen 3 |
| Gun Door Repair Kit | From $14.99 | Ejection port spring, latch, and side door replacement hardware. | Fits standard MCK models |
| Gen 3 Universal Charging Handle | $65.99 – $79.99 | Ambidextrous dual-sided charging handle upgrade for Glock & P80 slides. | Gen 1, Gen 2, Gen 3 |
| MCK Gen 2 Replacement Stock | $48.99 – $59.99 | Right-folding polymer rear stock arm assembly with push-button lock. | Gen 2 MCK Platforms |
| MCK Flashlight Adapter / Plug | Standard OEM | Nose cavity plug or adapter ring for securing front tactical flashlights. | Universal MCK Nose Cavity |
| Replacement Body Hardware & Pins | Standard OEM | Factory steel retention pins and screws for structural chassis frame repair. | All MCK Models |
Backwards Compatibility: The Gen 3 universal charging handle fits Gen 1, Gen 2, and Gen 3 MCKs, offering ambidextrous dual-lever rack capability.
Handgun Models: Available in specialized fitments for Glock, Polymer80, Smith & Wesson M&P, Taurus, and Sig Sauer slide serrations.
Smooth Shell Ejection: Restores positive spring pressure and tight latching on the side brass ejection port door.
Includes: Replacement door hinge pins, retention springs, and polymer door flaps for field repair.
Muzzle Impact Protection: Encases the forward handgun slide and muzzle area, guiding spent gas forward out of the chassis.
Easy Replacement: Unthreads or unscrews directly from the main chassis shell for quick replacement.
💡 PRO TIP: Always keep spare charging handles and body retention pins in your range bag. Regularly inspect friction surfaces on charging handle tabs to ensure positive engagement with handgun slide serrations.