Drop-in 9mm threaded barrel for Glock 17 Gen 1, 2, 3, and 4 frames — Brownells match-grade fluted profile in 416R stainless steel. Standard 5.0" Glock 17 length with 1/2x28 muzzle thread for suppressors, compensators, and flash hiders. No gunsmithing or proprietary parts required; the barrel cycles with the OEM recoil rod and spring.
The fluted exterior reduces reciprocating mass and dissipates heat, which keeps the slide running cooler through extended range sessions. Bore is button-rifled and lapped for a tight chamber, and the included thread protector keeps the muzzle dressed when you are not running a suppressor or comp.
Features:
Function-check by hand-cycling the slide after install and confirm the barrel locks fully into battery before live fire. Gen-5 owners should pick a Gen-5 specific barrel — the locking block geometry differs.
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