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Radian built the Afterburner + Ramjet combo to solve a real problem with the new Glock 17 Gen 6: the barrel geometry changed, so Gen 5 comps and barrels simply won't fit right. This is a dedicated Gen 6 system, machined around the updated slide and barrel specs so it drops in clean and locks up correctly every time. The result is a pistol that shoots noticeably flatter, with up to 44% recoil reduction when you pair the ported Ramjet barrel with the Afterburner micro-compensator. For range days, competition, or a duty gun, that translates to faster sight recovery and tighter groups during longer strings of fire.
The Ramjet barrel is cut from hardened 416R stainless steel with a fluted profile, a match-grade bore, a gas-sealing chamber, and a loaded chamber indicator notch. It runs a 4.9 inch length with a 1:14 left-hand twist. The Afterburner is a true micro-compensator, adding only about half an inch to the slide while outperforming plenty of full-size comps on the market. Both pieces wear Radian's Radianite coating for low friction, high hardness, and strong corrosion resistance, so muzzle blast and wear are not a concern. The angled front faces on the Afterburner also help the pistol slide back into a holster smoothly.
This is where the threadless design shines. The INTRA-LOK mounting system uses a tapered locking screw that seats into a V-groove on the underside of the barrel, timing the compensator perfectly as it clamps down. No Loctite, no shims, no set screws, and no thread timing to fuss with. Just slide the comp on, tighten the screw with the included Torx bit, and you're done. It also comes apart just as easily, so pulling the barrel for a thorough cleaning is quick. This combo is engineered to run 124 grain and heavier 9mm ammo, which is worth keeping in mind when you stock up for it.
No. This R0989 version is machined specifically for the Glock 17 Gen 6, which has different barrel geometry than earlier generations. Radian warns against installing Gen 5 or earlier components in a Gen 6 pistol, and the reverse applies too. Make sure your frame and slide are Gen 6 before ordering this combo.
No, and that is one of the best parts about this setup. The Ramjet barrel is threadless and uses Radian's INTRA-LOK taper lock system, where a tapered screw seats into a V-groove under the barrel to time and secure the Afterburner. There is no thread cutting, no Loctite, and no shims required.
Radian engineered the Afterburner + Ramjet to run 124 grain and heavier 9mm ammunition. Heavier bullets give the compensator more gas to work with, which is where you get that flatter, softer shooting feel. Lighter loads will still function but won't deliver the same recoil reduction.
The Afterburner only adds about half an inch to the slide, so a G17 with this combo lands around G34 overall length. That means your longer-slide Glock holsters will generally accommodate it. It is always smart to confirm fit with your specific holster before heading out.
| UPC | 810098421690 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | R0989 |
| Shipping Weight | 0.48 |
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