The Radian Weapons Ramjet + Afterburner combo is a matched barrel and compensator system engineered for the Sig P365 3.1" slide. This pairing brings match-grade accuracy and measurable recoil reduction to a compact concealed carry platform—a rare combination in the subcompact space. The Ramjet barrel is machined from hardened 416R stainless steel, while the Afterburner compensator uses hardened stainless construction. Both components receive Radian's proprietary Radianite Black coating, which provides superior corrosion resistance and durability against the erosive effects of muzzle blast.

What sets this combo apart is the engineering behind it. The Afterburner's angled front face geometry aids in holster clearance and draw, addressing a real concern for carry shooters running a comp. The Ramjet barrel incorporates a match-grade chamber and loaded chamber indicator, and the threadless design means you can remove the barrel from the slide without tools—perfect for field cleaning on a carry gun. Installation is straightforward: slide the compensator over the barrel, insert the locking screw, and tighten. That's the Radian INTRA-LOK mounting system in action—a tapered locking screw interfaces with an angled V-groove on the underside of the barrel to achieve proper timing every time you reassemble.

Because the barrel and compensator are sold as a matched set and installed with a simple mechanical lock, you get reliable repeatability and the confidence that your setup will shoot the same way every time you reassemble. This combo is legal to own and sell in all 50 states, making it an option for carry shooters in restrictive jurisdictions where some other performance upgrades aren't available.