For MilSim enthusiasts and dedicated clone builders, the Maddog Customs MCX SPEAR LT Stock Adapter Tube with M1913 Stock Adapter is a purpose-built upgrade designed to bring greater structural accuracy and realism to premium airsoft rifle builds. This second-generation adapter is made specifically for the SIG Sauer MCX Spear LT and smoothly connects modular M1913 folding interfaces with standard AR-style receiver extensions. It delivers the exact hardware required to recreate the distinctive profile of modern Combat Applications Group setups on gas blowback and high-end AEG platforms.

The adapter is constructed from premium CNC machined aluminum, giving it the strength to withstand the intense recoil of gas systems while providing a completely solid, wobble-free mounting solution. Its Flat Dark Earth finish is ideal for CAG-style builds and is hard anodized to match current military contract specifications. The integrated M1913 Picatinny interface stock adapter allows the installation of standard M4 buffer tubes, so users can attach their preferred carbine stocks with ease. As a genuine Maddog Customs tactical airsoft upgrade part, it is designed for operators who demand absolute structural accuracy from their custom rifle builds.

This adapter is built to fit gas blowback and AEG training rifles that feature a rear M1913 Picatinny rail, including popular APFG and VFC MCX models. It accepts standard Mil Spec AR-15 receiver extension tubes, making stock selection simple and flexible. The V2 model takes reliability further with redesigned interior threads and an upgraded steel mounting clamp that completely eliminates flex during heavy transitions. A built-in quick detach socket at the base also allows for clean and simple sling routing, adding practical functionality to the robust design.

When assembling a high-tier replica, a weak stock junction is simply unacceptable. The Maddog Customs V2 adapter uses high tensile steel mounting hardware to banish the typical bending found in cheaper cast alloy parts. This guarantees that optic alignment and cheek weld stay totally consistent throughout rigorous training sessions. Included in the package is the BK adapter tube, the integrated Picatinny clamp assembly, and the steel mounting bolt. It serves as a practical, heavy-duty upgrade for airsoft players who value true mechanical reliability and precise dimensions over basic visual appeal. This item ships immediately.

Compatibility: 1913 Picatinny Rail Stock Interface.

Key Features

• Maddog Customs MCX SPEAR LT Stock Adapter Tube w/ M1913 Stock Adapter (For CAG Build, FDE, V2)

• Premium CNC machined aluminum construction for strength and precision

• Flat Dark Earth finish specifically suited to CAG-style builds

• Integrated M1913 Picatinny interface stock adapter

• Allows installation of standard M4 buffer tubes

• Designed specifically for the SIG Sauer MCX Spear LT

• Upgraded Version 2 design offering enhanced durability

• Genuine Maddog Customs tactical airsoft upgrade part

• Ships immediately

• Built for MilSim enthusiasts and dedicated clone builders

• Connects modular M1913 folding interfaces with standard AR-style receiver extensions

• Recreates the unique profile of modern Combat Applications Group setups

• Suitable for gas blowback and premium AEG platforms

• CNC machined from high-grade aluminum alloy to withstand intense gas-system recoil

• Provides a completely solid, wobble-free mounting solution

• Ideal for operators who need absolute structural accuracy in custom rifle builds

• Fits gas blowback and AEG training rifles with a rear M1913 Picatinny rail

• Compatible with popular APFG and VFC MCX models

• Accepts standard Mil Spec AR-15 receiver extension tubes for easy carbine stock attachment

• V2 model features redesigned interior threads and an upgraded steel mounting clamp

• Upgraded clamp completely eliminates flex during heavy transitions

• Hard anodized Flat Dark Earth brown finish matches current military contract specifications

• Built-in quick detach socket at the base for clean and simple sling routing

• Uses high tensile steel mounting hardware to banish bending found in cheaper cast alloy parts

• Guarantees optic alignment and cheek weld stay consistent throughout rigorous training sessions

• Package includes the BK adapter tube, integrated Picatinny clamp assembly, and steel mounting bolt

• Practical, heavy-duty upgrade for airsoft players who value true mechanical reliability and precise dimensions over basic visual appeal

• Compatible with a 1913 Picatinny Rail Stock Interface