ZEV Technologies guide rods for Glock platforms are machined from stainless steel and available in full-length and standard configurations. Full-length designs improve spring alignment and reduce muzzle dip during rapid-fire strings — a measurable advantage in USPSA and IDPA divisions where split times determine classifier outcomes. Compatible with ZEV and OEM recoil springs across G17, G19, G34, and G35 platforms. Fast same-day shipping on most orders at Shooters Connection.