Blackout Dynamics Quantum DTL-X 300 Blackout AR Upper from Midnitefire Armory LLC near Medina, Akron, OH

This is brand new and these are hard to find. I'm a stocking dealer for Blackout Dynamics and also a user of their products. This is their clr/green combo.

The DTL is a system: The Dual Taper Lock system works in conjunction with our proprietary tapered barrel extension and tapered barrel. This provides a “push-pull” relationship ensuring bore centricity of the upper receiver and barrel.

The main barrel nut is also compatible with MILSPEC barrels by simply reversing it. Prolonged shooting creates a lot of heat, which can be the enemy of precision. The thermal expansion rings featured on our DTL barrel guide the barrel to expand in the direction of the bore rather than to deflect and shift MOA.