For enhanced reliability in high-dust environments

A sliding stock can extend out allowing users to remain stable while firing the weapon

The Tapp M4 Modular Adapter converts your traditional gas Airsoft gun to use HPA and accept standard M4 AEG magazines

the MK II and MK IV variants feature a Picatinny rail for weapon accessories such as lights and lasers

Tokyo Marui Sledge Hammer Full-Auto Electric Shotgun f1 For enhanced reliability in high-dustTokyo Marui introduces the world's first AES or Airsoft Electric Shotgun in the form of the AA12 otherwise known as the "Sledgehammer". Featuring a unique proprietary gearbox and tri barrel configuration, the Sledgehammer utilizes three separate hop ups allowing the user to zero in their bursts for the utmost effectiveness in combat. The sledgehammer is the shotgun you turn to when you are in search of total CQB domination. Features Injection molded