Combination kit for Glock G19 Gen 5 / G19X / G45 (or compatible); Combo provides 44% recoil reduction (115g ammunition); Afterburner compensator is machined from hardened 17-4 SS; Ramjet barrel from hardened 416R SS; Enhanced with a DLC (Diamond-Like Carbon) coating; Taper-lock screw interface; no Loctite, shims, or setscrews needed; Angled front faces aid in holstering; No threads, legal for sale in all 50 states; Match grade cut barrel; Gas sealing chamber; Loaded chamber indicator