RADN R0836 Afterburner+Ramjet Sig P365 3.1 BRZ The Radian Afterburner + Ramjet Combo provides Industry leading Recoil Reduction And Match-Grade Accuracy In a Concealed Carry Package. The threadless Barrel Design Allows For Effortless Install/Removal For Cleaning. The Afterburner Compensator Is machined From Hardened Stainless Steel And The Ramjet Barrel From Hardened 416R SS; Both Are Enhanced With a Radianite Coating. This Combination achieves Low Friction, High Hardness, And High Corrosion Resistance, Making Overall Durability And Erosion From Muzzle Blast a Non-Issue. The Intra-LOK Mounting System uses The Taper Lock Principle; a Tapered Locking Screw interfaces With An Angled V-Groove On The Underside Of The Barrel. This perfectly times The Compensator as It Locks Down Onto The Upper Barrel Profile On The Muzzle End Of The Barrel. Model: Ramjet + Afterburner Combo Barrel Type: Ported