Reviews indicate the kit can deliver strong functional performance for first-time users, with a reviewer noting measured output and satisfactory operation. However, the same reviewer experienced poor post-sale responsiveness, calling attention to customer service and communication shortfalls. Buyers should verify compatibility with their firearm model, confirm return and warranty terms, and test responsiveness of support before purchase. For due diligence, request installation instructions, ask about shipping/update protocols, and confirm legal compliance for your jurisdiction.
Examples from available reviews (Feb 2026).
Product performs well, but poor customer service lowered my rating.
“I am not impressed with the customer service.”
Reviewer reports unresolved support calls and lack of callbacks, noting customer service did not respond to inquiries about shipping delays.
No explicit comments about price or value; the reviewer praised performance but did not discuss cost, discounts, or perceived affordability.
User describes initial skepticism followed by clear satisfaction on first use, noting notable performance and straightforward first-time operation.
Product performance is highlighted (reported 400fps) and called 'legit,' indicating the reviewer found the hardware effective and functional.
Reviewer called several times about delays and reports no returned calls, indicating gaps in responsiveness and proactive updates.
Final impression is mixed: strong product performance but customer service shortcomings reduced the overall star rating.
For each review, the core experience based on original source reviews.
Sources: Collected.reviews (1) · Quotes shortened · As of: February 2026
I had the best experience with the MCK GEN 2 today. The first time using it I was still skeptical but when I saw that my m4 was shooting 400fps I knew this product was legit! Now I just have to put a drum mag and some more stuff on my gun! However, I am not impressed with the customer service. I called several times concerning the delays and was told someone would call me back and no one ever did. If you only improve on customer service delivery, then I would award 5 stars. For now 3 stars are more than enough for you!
This page combines submitted experiences with public reviews from platforms such as Google, Trustpilot, etc. Recurring points are summarized without changing the content of reviews.
Gun Kits is a retailer and brand category name associated with firearm conversion kits and related accessories, including micro conversion units, mounting hardware, and tactical add-ons. Consumers researching Gun Kits typically look for product compatibility (specific firearm models), installation instructions, legal compliance information, warranty and return policies, and customer support responsiveness. When evaluating sellers of gun kits, check technical specifications, compatibility lists, and local laws regarding device use and possession.