A3 Industries MTS 8.5" Picatinny - Telescoping Stock

Add a telescoping stock to virtually any firearm with a rear Picatinny rail. The A3 Industries Modular Telescoping Stock collapses to add just 2" to your firearm's overall length, making it one of the most compact and lightest telescoping stock options available.

The A3 Industries Modular Telescoping Stock (MTS) is an ultra-compact Picatinny-mounted telescoping stock with 8.5" steel rods and an aluminum/rubber buttpad, designed for minimalist firearm configurations.

You get a universal Picatinny 1913 mounting interface that eliminates the traditional side clamp in favor of a rail insert and two set screws, creating a stronger, more compact connection. Four push-button length settings let you adjust quickly to your shooting position, and the entire stock can be flipped to provide a 1" vertical offset. The Melonite-coated 4140 steel telescoping rods deliver wear resistance and rust prevention in a slim, low-profile package.

• Type: Modular Telescoping Stock (MTS)
• Rod Configuration: 8.5" Steel Rods
• Buttplate: A3T Aluminum/Rubber
• Mounting Interface: Universal Picatinny (1913)
• Length Positions: 4 (Push-Button Release)
• Collapsed Length Added: 2.00"
• Vertical Offset: 1" (Flippable)
• Rod Material: 3/8" 4140 Steel, Melonite Coated
• Mounting Components: 6061 Aluminum (Profiled)
• Buttplate Options: 5 Different Buttplates Available

Compatible with any firearm featuring a rear Picatinny (1913) rail. Also fits SIG MPX. Note: will not fit SIG MCX or Rattler. On most applications, the firearm can be fired with the stock fully collapsed.

Mounting components are machined from 6061 aluminum with profiled non-stress areas to minimize weight without compromising strength. The 4140 steel rods are Melonite coated for superior wear resistance and corrosion protection.

Ideal for PDW-style builds, SBR configurations, pistol-caliber carbines, and any firearm with a rear Picatinny rail where minimum overall length and weight are priorities.

A3 Industries specializes in compact, modular stock systems designed for versatility across multiple firearm platforms. Engineered for shooters who demand the smallest possible footprint without sacrificing function.