Open your airsoft gun up to a wider range of customization options using the new M40A3 Sportline Threading Adapter from ASG. This full metal thread adapter converts 21mm barrel threads to 14mm, allowing for the installation of an aftermarket flash hider or mock suppressor. You no longer have to limit your tactical upgrades based on the manufacturer’s design, thanks to the new M40A3 Sportline Threading Adapter from ASG.

Features:

• Compatibility: 21mm Barrel Threads
• Opens Up A Wide Range Of Customization Options
• Quick & Easy Installation