Radian Afterburner & Ramjet Micro Glock Compensator, Glock 43X
The Radian Afterburner + Ramjet introduce industry-leading recoil reduction while fitting into a conceal carry platform.
Afterburner™ + Ramjet™ together reduce recoil up to 44% when using 115g ammunition. The Afterburner offers unprecedented performance in a micro compensator and is more effective than the majority of full-size compensators on the market.
Installed on a Glock 43X, the Afterburner and Ramjet combo increases the overall length to a Glock 48, allowing compatibility with all Glock 48 holsters.
Afterburner
The Intra-Lok™ mounting system uses the taper lock principle: a tapered locking pin interfaces with an angled V-groove on the underside of the barrel. This perfectly times the compensator. Angled front faces on the Afterburner aid in holstering.
- 44% recoil reduction in combination with Ramjet (115g ammunition)
- Hardened 17-4 stainless steel
- Taper-lock screw interface; no Loctite, shims, or setscrews needed
- Angled front faces aid in holstering
- Finished in DLC
- No threads, legal for sale in all 50 states
Ramjet
The Radian RAMJET is a match-grade pistol barrel that delivers an accurate and reliable weapon system. The fluted barrel features a gas sealing chamber as well as a loaded chamber indicator.
Compatible for install only on a Glock 43X.
- Hardened 416R stainless steel
- Match grade cut rifled barrel
- Fluted barrel
- Gas sealing chamber
- Finished in DLC
Paul F. (verified owner) –
The Radian Ramjet + Afterburner for the Glock 43X is one of those upgrades that immediately makes you wonder why you didn’t do it sooner. From the moment you install it, the difference in shootability is obvious. The integrated compensator design isn’t just for looks—it genuinely tames recoil and muzzle rise in a way that feels almost unfair for a pistol this size. Follow-up shots are faster, flatter, and way more controlled, especially for something as slim and carry-friendly as the 43X.
What really stands out is how seamless the system is. It doesn’t feel like you bolted on some bulky aftermarket part—it feels like it belongs there. The fit and finish are exactly what you’d expect from Radian: clean machining, tight tolerances, and that premium feel that makes the price sting a little less once you actually run it.
Speaking of price… yeah, it’s not cheap. But it’s one of those “buy once, cry once” upgrades that actually delivers on the hype. If you shoot your 43X regularly, this setup turns it into a completely different animal.
Now, I’ve gotta give a huge shoutout to Rooftop Defense. If you’re in California, you already know how frustrating it can be dealing with companies that either won’t ship to you or make things unnecessarily complicated. Rooftop Defense is the opposite of that. They’re fast, responsive, and actually supportive of CA customers—which, let’s be honest, feels rare these days. Orders ship quickly, everything is packaged well, and the overall experience just feels like they get it.
And here’s the best part: they tossed in a pack of Ramen noodles with my order!
Yes, seriously.
At first, I thought it was a joke—but honestly, it’s kind of perfect. Because after dropping money on gun parts like the Ramjet + Afterburner, there’s a very real chance you’re financially committed to “tactical dining” for a few days. It’s like they’re saying, “We know you just spent your grocery budget… here’s dinner.”
All in all, incredible product, top-tier performance, and a company that not only delivers great service but also has a sense of humor about this expensive hobby we all love.
Juan L. (verified owner) –
Anyone wanting to have a flatter shooting Glock 43x, look no further. The Radian afterburner / Ramjet with the magwell is totally amazing! My p365 is next in line for the upgrade.
Gian (verified owner) –
Sol and the crew are THE BEST! Can not say enough about the customer service RoofTopDefense has!! This setup works better than expected. A lot more flatter and a lot faster follow up shots. Cheers!