SAI AR-15 Barrel


Select an option/version to purchase

Introducing the SAI Box Fluted barrel available in 11.5" & 14.5" 5.56 configuration and a 1.5" & 14.5" 300 Blackout version that is available.  The SAI Box Fluted barrel leverages a 45 degree gas port that reduces the firing impulse of the rifle while leveraging an intermediate gas system. The barrel has a fluted square which makes the barrel more predictable, reduces barrel whip, increases heat dissipation, and reduces weight.

This barrel goes through a unique process where the barrel and receiver extension are individually serialized and then sent to be individually coated - Black Nitride (Barrel outer/inner), TiN (Titanium Nitride) Receiver Extension.  They are then reunited and hand torqued for a precise fit.  

These barrels come with a Lifetime warranty- so if you can shoot them out we will give you a new one, free of charge.

• Proprietary Box Flute Design
• Length: 14.5" 5.56, 300 Blackout (Coming Soon!)
• Weight: 1.662 LBS
• Intermediate Gas System (5.56), Pistol (300 Blackout)
• 45 degree gas port
• Accepts a .750 Gas Block
• Black Nitride Barrel - Outside and Inside
• Titanium Nitride (TiN) Receiver Extension
• M4 Feed Ramps
• Lifetime Warranty

Please note that all NFA rules apply to any barrel under 16".

• All weapons and parts carry a lifetime warranty.