The new Smith & Wesson M&P (2.0 & 4″ Barrel) Micro Conversion Kit is here, designed for the popular and reliable M&P handgun series. Built on the advanced MCK Gen 2 platform, this kit transforms your firearm, offering enhanced accuracy and an unparalleled shooting experience.
With an improved frame-lock and spring, the kit ensures quick and easy assembly and disassembly. It’s compatible with both the 2.0 and 4″ barrel M&P models, making it a versatile upgrade for many firearm owners. As a favorite worldwide, the M&P handgun is the perfect match for this conversion kit, designed to impress shooters of all skill levels. Upgrade your Wesson M&P (2.0 & 4″ Barrel) into a full-featured PDW using our rugged Handgun Conversion Kit, the most popular Pistol Conversion Kit and Smith & Wesson M&P 2.0 & 4″ Barrel Chassis system in the world.
Unmatched Features for Smith & Wesson M&P Owners
This new kit includes several key improvements:
Why This Kit is a Game-Changer
The Smith & Wesson M&P (2.0 & 4″ Barrel) Micro Conversion Kit is the ultimate upgrade for your handgun, offering a blend of precision, versatility, and innovation.
Upgrade your shooting experience today with the most cost-effective and efficient conversion kit on the market.
Smith & Wesson M&P (2.0 & 4″ Barrel)
MCK Measurements:


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Constructed of high-impact polymer and TPE rubber—lighter and more durable than conventional rubber. Fires folded and locked. Compatible with Gen 1 & 2 MCKs; secures via Velcro arm strap. Exclusively licensed to CAA USA by SB Tactical (patent owner)—the only authorized MCK brace kit. Non NFA item.

The MCKGEN2 Stock is the NFA rifle stock exclusive to the MCKGEN2 platform. Designed to shoulder while firing, it delivers optimal comfort, ergonomics, stability, and accuracy. Note: Installing a stock converts a pistol into a Short-Barreled Rifle (SBR), requiring ATF/NFA compliance.

The Stabilizer Brace is the short replacement stock for both MCK and Micro RONI® platforms. It enables one-handed firing with a custom-fit hook-and-loop fastener and adjustable nylon brace. Features a folding mechanism for stability and includes a forearm strap for single-handed support—without converting your handgun into an SBR. Designed mainly for the US market.

The TAC Kit transforms your Micro Conversion Kit into a compact setup with a One-Point Sling (Push Button Swivel) and thumb rests, inspired by HK MP5K dynamics. Full arm extension plus bungee resistance creates a steady platform for better accuracy and control. Includes a forearm strap for single-handed support without converting your handgun into an SBR.
What's The Difference Between a Stabilizer vs. Short Stabilizer vs. Stock vs. TAC?:
Find out if your pistol is compatible out of the box or if it requires an upgrade kit.
Select your gun's manufacturer and exact model above to verify setup compatibility.