Bow Master VFC AV74M GBB NPAS Nozzle Set Article 1 The stock works much like

The stock works much like standard stocks and works with standard buffer tubes found on both GBB as well as AEG M4s

For better gas flow and efficiency

We try to build new products by new material and new system to get more efficiency

Features the new Heavy Duty Belt Buckle V1

Inner Diameter: 11mm

Bow Master VFC AV74M GBB NPAS Nozzle Set Article 1 The stock works much likeThis nozzle set by Bow Master is designed for the VFC AK74M GBB Airsoft rifle series. CNC machined using high grade aluminum, it features enhanced parts durability over the original OEM nozzle. This nozzle also features NPAS technology, allowing the end user to adjust the muzzle velocity FPS output with ease. It is a simple drop in installation and does not require modifications to ensure proper fitment. Compatibility: VFC AK74M GBB Airsoft Rifle