The Radian R0841 AFTERBURNER + RAMJET Combo for Sig P365XL provides unprecedented 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. Angled front faces on the AFTERBURNER aid in holstering.Features :Radianite Bronze FinishFits Sig P365XLEngineered specifically to run 124 grain and heavier 9MM ammunition