Regularly cleaning and maintaining your Micro Conversion Kit (MCK) and host handgun ensures optimal reliability, prevents carbon binding, and maintains peak performance. Because firing a firearm inside an enclosed chassis concentrates muzzle discharge around the slide and internal shroud, following a proactive maintenance routine is essential. CAA USA recommends cleaning both your MCK chassis and handgun after every 300 rounds.
Recommended Cleaning Interval: Every 300 rounds of live fire.
Proactive Handgun Prep: Pre-treating your handgun's slide and muzzle with a light coat of gun grease (e.g., Tetra Gun Grease, Rem Oil, Clenzoil) before insertion prevents carbon from caking onto the slide finish, allowing residue to wipe off effortlessly during teardown.
General Exterior Surface: Dilute a mild dish soap with water and apply using a damp microfiber cloth. Scrub the chassis, applying firm pressure as needed to break up gunpowder residue.
Front Shroud Vents: Use a soft-bristles brush from a gun cleaning kit or a soft toothbrush to clean between individual frame vents.
๐ MATERIAL PROTECTION WARNING: Do NOT use printed/inked paper towels, as the ink can transfer directly into the polymer. Do NOT use steel wool or abrasive pads under any circumstances, as they will permanently scratch the chassis body.
Internal Receiver Chamber: Open the rear door and use a soft toothbrush, cloth, or gun cleaning brush to wipe away all internal carbon buildup. For persistent debris, a non-abrasive cleaner like Soft Scrub can be used safely.
Barrel Shroud Area: Insert a soft toothbrush around both the interior and exterior surfaces of the barrel shroud to scrub away heavy fouling, then wipe clean with a microfiber cloth.
When fired inside a chassis, firearm slides collect more discharge residue than under standard exposed shooting conditions. Follow these steps to clean your handgun post-range session:
| Cleaning Scenario | Handgun Maintenance Step |
| Pre-Treated Firearm (Lubricated before shooting) | Simply use a clean microfiber cloth to wipe off the layer of grease/lubricant. Carbon and debris will wipe off easily with the oil layer. |
| Untreated Firearm (Shot dry without pre-lube) | Carbon buildup will be caked onto the front slide and muzzle area. Apply a dedicated firearm cleaner (e.g., Break-Free CLP, Ballistol, M-Pro 7) to a microfiber cloth and thoroughly wipe down the slide. |
| Final Assembly Maintenance | Proceed with standard field-stripping and cleaning procedures according to your handgun manufacturer's safety and maintenance instructions. |
๐ SURFACE PRESERVATION WARNING: Never use steel wool or harsh metal scraping tools on your handgun's slide or frame. Abrasives will strip the protective factory finish and scratch the metal components.