- Upgrade to a 407mm Inner Barrel
- Precision CNC Machined Aluminum Construction
- Matte Black Finish
- Highly Recommended to use the Airtech BSU Barrel Stabilizer Unit (Sold Separately) to Lock-Down the Inner Barrel Preventing it From Swaying When Shooting to Increase accuracy and consistency.
Special Note – For the AM-013 to be compatible, please ensure your suppressor cap is able to twist off into ‘two-pieces’ for the Suppressor Extension Unit to fit. There are rare versions of the AM-013 cap which comes as a ‘one-piece’ part - if this is the case, please note this product will not be able to be installed for the time being. Please check your rifle before purchasing.
New Nuprol Delta Spec versions of the AM-013 & AM-014 compatible.
Worldwide Shipping with free insurance for every order!
Recommended 407mm Inner Barrels
Prometheus 6.03 EG Barrel for M4 / SR16 / SG551+ (407mm)
Madbull 6.03mm Black Python Ver.2 Tight Bore Barrel for M4/SR16 AEG (407mm)
Angry Gun 6.03 Stainless Steel Precision Inner Barrel - 407mm M4/SR16/XM177
We ship fast - usually same-day if you order before 4pm Monday - Friday. A tracking # will be emailed to you once it leaves our facility. We work hard to ensure a fast and prompt service with your order. Please note that orders placed online over the weekend will ship on first thing on Monday. We provide free Insurance cover for all orders worldwide.