Description
The Radian Afterburner Ramjet G17 Gen 5 is Radian Weapons’ threadless compensator kit for Glock 17 Gen 5, sold as part number H0005. It pairs the RAMJET ported pistol barrel with the AFTERBURNER micro-compensator, joined by Radian’s INTRA-LOK taper interface. There are no muzzle threads to cut and no gunsmithing involved: the barrel drops into the slide and the compensator clamps to it. MAG5 Firearms stocks the black Radianite version under UPC 810098420372.
How the Radian Afterburner Ramjet G17 Gen 5 works
The Ramjet ported barrel is match-grade, cut-rifled and machined from hardened 416R stainless steel. It is fluted to shed weight and heat, and a gas sealing chamber sits behind the muzzle to route propellant gas into the compensator instead of letting it vent straight forward. Because the muzzle is left unthreaded, the Radian Afterburner Ramjet G17 Gen 5 stays usable in states that restrict threaded handgun barrels, and a loaded chamber indicator is cut into the hood.
The Afterburner micro compensator slides over that gas chamber and locks down on one tapered screw at 15 inch-pounds. That is what the threadless INTRA-LOK mount buys you: no thread timing, no crush washer, no thread locker to break free later, and the whole assembly comes back off in a couple of minutes. Radian rates the barrel and compensator together at a 44 percent reduction in felt recoil with 115-grain ammunition.
Radian Afterburner Ramjet G17 Gen 5 specifications
- Fitment: Glock 17 Gen 5, and the G47 and G49 which share its slide dimensions
- Barrel: match-grade, cut-rifled, fluted, ported, non-threaded muzzle
- Barrel material: hardened 416R stainless steel
- Compensator material: hardened stainless steel
- Finish: Radianite black on both components
- Mounting: INTRA-LOK tapered screw, 15 in.-lb.
- Ammunition: 9mm, 115 grain and heavier
- In the box: Ramjet barrel, Afterburner compensator, tapered screw, TORX bit
Radian publishes the full fitment chart and torque figures on its own product page.
What the Radian Afterburner Ramjet G17 Gen 5 changes on the range
Fitted to a duty-length gun, the Radian Afterburner Ramjet G17 Gen 5 behaves like a well-tuned Glock 17 Gen 5 compensator should: the dot or the front sight lifts less, and it returns to the notch sooner. That is the whole benefit, and it is worth being precise about it, because a compensator does not reduce recoil energy so much as redirect where it goes.
The threadless INTRA-LOK mount is the part that makes this practical rather than a project. A conventional comp needs a threaded barrel, correct timing and something to keep it there. Here the Ramjet ported barrel and the Afterburner micro compensator are machined as a matched pair, and one screw holds the interface.
Fitment and holsters
Check the fitment before you order, because these kits are not interchangeable between models or generations; the hood and lug geometry differ. This Radian Afterburner Ramjet G17 Gen 5 is cut for Glock 17 Gen 5, and the G47 and G49 which share its slide dimensions, and nothing else. Radian builds separate part numbers for every other host pistol, and none of them cross over.
The G17 is already full-size, so the compensator adds length past the end of a standard G17 holster. You need one cut for a longer slide or with an open muzzle; a G34 or competition-length shell is the usual answer.
The honest caveats
A compensator is not free performance, and the Radian Afterburner Ramjet G17 Gen 5 is no exception. Redirecting gas upward makes the pistol noticeably louder to the shooter and to anyone standing beside you, and it throws more gas, unburned powder and particulate back toward your face. Indoors, or shooting from a compressed retention position, that is genuinely unpleasant.
Ported barrels and compensators also foul quickly. Expect to scrub carbon out of the Afterburner micro compensator far more often than you would clean a plain muzzle, and expect the Radian Afterburner Ramjet G17 Gen 5 to want cleaning on a schedule closer to a suppressed gun than a stock one.
Hanging a compensator on the gun also changes slide timing. Radian says plainly that the Radian Afterburner Ramjet G17 Gen 5 can require adjustment to recoil spring, lubrication or ammunition choice. Light 115-grain range loads are the floor the system is designed around, and anything weaker can short-stroke. If the pistol has a defensive role, put a couple hundred rounds of your actual carry load through it before you trust the setup.
Check local law as well. The Ramjet ported barrel ships unthreaded and is sold as fifty-state legal, but some municipalities restrict compensated or ported handguns, and several competition divisions bar them from stock classes. Because there are no muzzle threads, the Radian Afterburner Ramjet G17 Gen 5 is not a suppressor host either; if a can is in your future, buy a threaded barrel instead.
Who the Radian Afterburner Ramjet G17 Gen 5 suits
Range and competition shooters running a full-size Glock. On a duty-length gun the flatter tracking is easy to feel, and the extra weight out front is less noticeable than it is on a compact.
The Radian Afterburner Ramjet G17 Gen 5 comes off in minutes and leaves no permanent change to the pistol, so it is a reversible experiment rather than a commitment. If you run a Gen 6 Glock as well, we stock the all-black Glock 19/45 Gen 6 kit, and the Radian Glock 19 quick-tune guide rod is the usual companion for dialling recoil spring weight back in once the compensator changes the timing.
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