GPO Ballistic Tower (GBT)

GPO Ballistic Turret (GBT)
With the GPO Ballistic Turret (GBT), German Precision Optics offers an innovative, precise, and quickly operable solution for reticle adjustment on SPECTRA-8x series riflescopes. The ballistic turret allows shots at different distances with the highest precision and can be mounted in just a few seconds. The GBT replaces the standard turret of the SPECTRA 1.6–13x44i and can be mounted without tools. The already integrated ZERO-Stop of the SPECTRA models remains fully intact and is compatible with both turret variants. The ballistic turret features five stacked rings for distance marking up to 500 m. Thanks to its robust mechanics, the turret can be locked if necessary to prevent unintentional adjustments – perfect for hunters, sport shooters, and long-range enthusiasts who rely on absolute repeatability.
Features & Benefits
Quick, tool-free mounting – replacement of the standard turret in seconds
Five ballistic rings for distances up to 500 m
Compatible with the ZERO-Stop system of SPECTRA riflescopes
Lockable – protection against unintentional adjustments
Precise click adjustments for exact shot corrections
Ideal for long-range shots and changing distances
Compatible Riflescopes
SPECTRA™ 8x 1–8x24i
SPECTRA™ 8x 1.6–13x44i
SPECTRA™ 8x 2–16x50i
Technical Data
Product Name
GPO Ballistic Turret (GBT)
Compatibility
SPECTRA 8x 1–8x24i, 1.6–13x44i, 2–16x50i
Distance Markings
5 rings for 100 m to 500 m
Function
Ballistic elevation adjustment with ZERO-Stop
Safety
Lockable against unintentional adjustments