The Radian Ramjet barrel and Afterburner micro compensator combo is a drop-in upgrade for Glock 19 Gen 5 pistols chambered in 9mm. The Afterburner is one of the smallest pistol compensators on the market at just 0.47" long, yet the two-piece system cuts felt recoil by up to 44% with 115gr ammunition. The Ramjet barrel is match-grade 416R stainless with a DLC (Diamond-Like Carbon) finish for hardness and corrosion resistance. The Afterburner compensator is hardened 17-4 stainless with the same DLC coating. Together they install on a Gen 5 Glock 19 without any frame work - strip the slide, swap the barrel and recoil assembly, and the package extends the overall slide length to match a Glock 17, so G17 holsters fit the build. Mounting: Radian's INTRA-LOK system uses a tapered locking screw against an angled V-groove on the underside of the barrel. The compensator self-times against the muzzle face - no shims, no thread alignment to chase. Caliber: 9mm Luger Fitment: Glock 19 Gen 5 Barrel length: 4.42" Finish: DLC Black Weight (barrel): 0.278 lb Holster: extends to G17 length - use a G17 holster The Afterburner + Ramjet combo is legal for sale in all 50 states; verify state and local restrictions on compensators before install. DISCLAIMER: "GLOCK" is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.