Radian Weapons R0859 Ramjet + Afterburner Combo 9Mm Fits Glock 43X Black 416R Stainless Steel
The Radian Weapons R0859 Ramjet + Afterburner combo is a threadless barrel and micro compensator system built for the Glock 43X 9mm platform. If you carry a slimline pistol and want to manage recoil without the bulk and regulatory headaches of a traditional threaded barrel, this matched pair delivers flat-shooting performance while keeping your carry gun practical. The Ramjet barrel pairs with the Afterburner micro compensator using Radian's proprietary INTRA-LOK mounting system—a tapered locking interface that times the compensator to the barrel with precision and repeatable installation, no set screws required.
What makes this combo stand out is the threadless design. You get compensator-driven muzzle control during rapid strings without extending your barrel past the slide or dealing with added length. The geometry is tuned to work in concert: the Ramjet barrel and Afterburner are engineered as a system, so gas redirection and recoil impulse management stay balanced. Field stripping and cleaning are straightforward—remove the slide, drop the barrel as normal, and the compensator stays properly timed when you reassemble. That simplicity matters whether you're at the range running defensive drills or maintaining your gun at home.
Built from 416R stainless steel, the barrel and hardened stainless compensator are made to shoot and last. The finish options—Black, Bronze, or Black/Gray—let you dial in the look without compromising durability. Black keeps a duty aesthetic; Bronze adds a custom accent; Black/Gray gives a modern contrast for built-up pistols. Whether you're a competitive shooter chasing flatter splits, a serious carry practitioner who trains often, or someone building out a 43X with purpose-driven upgrades, this combo addresses the recoil behavior that makes slimline pistols demanding to shoot well with defensive loads.
Key Features
- Threadless INTRA-LOK mounting system—no threaded barrel complications or extended length
- Match-grade Ramjet barrel paired with Afterburner micro compensator for coordinated recoil reduction
- 416R stainless steel construction for durability and corrosion resistance
- Simplified field stripping and cleaning—barrel removal unchanged from stock Glock 43X procedure
- Three finish options (Black, Bronze, Black/Gray) to match your build aesthetic
- Designed for concealed-carry pistols without turning them into range-only competition guns
Specifications
| Brand | Radian Weapons |
| Model | R0859 |
| Platform | Glock 43X |
| Caliber | 9mm Luger |
| Components | Ramjet barrel and Afterburner micro compensator |
| Mounting System | INTRA-LOK threadless design |
| Material | 416R stainless steel barrel and hardened stainless compensator |
| Finish Options | Black, Bronze, Black/Gray |
| Quantity | 1 combo (barrel + compensator) |
Frequently Asked Questions
Will this Glock 43X barrel and compensator combo work with my stock slide?
Yes. The Ramjet barrel is designed for the Glock 43X platform and works with factory slides. The Afterburner compensator mounts via the threadless INTRA-LOK system, so you don't need a threaded barrel or modifications to your slide. Drop-in installation is straightforward.
Is field stripping different with this combo installed?
No. The threadless design means you remove the slide and barrel exactly as you would on a stock Glock 43X. The compensator stays seated and properly timed because of the INTRA-LOK interface. Cleaning and maintenance don't require special steps or tools.
What's the advantage of a threadless compensator system?
Threadless design avoids the added barrel length of traditional threaded muzzles, which keeps your pistol compact and practical for carry while still delivering compensator-driven recoil reduction. You also sidestep regulatory complications in some jurisdictions that relate to threaded barrels. The INTRA-LOK mounting system ensures consistent timing and alignment without set screws against barrel threads.
Can I use this if I'm carrying the 43X 9mm as a defensive gun?
Yes. This combo is engineered with concealed-carry use in mind. The matched barrel and compensator geometry keep the package compact enough for practical carry while improving control and flatter recoil behavior during defensive practice and high-round-count training. It won't turn your pistol into a bulky competition setup.

