The first Gtek to carry the Gamma Core, delivering near-flagship performance at a mid price; a strong used pickup.
Technical Specifications
Operation
Electropneumatic spool (Gamma Core)
Firing Modes
semi-auto, ramping
Caliber
.68
Feed System
Force-fed
Air Source
HPA
Operating Pressure
~140 psi
Weight (unloaded)
2 lbs
Street Price
$300-420 (used)
Maintenance
Low
Notable features: Gamma Core drivetrain, Zick rod tool-less maintenance, Compact body
Pros & Cons
Pros
Flagship-adjacent shot quality
Easy maintenance
Holds value
Cons
Superseded by 170R/180R
Used-only
Best for: Competitive players on a budget, Tournament starters
Setup & First-Day Tuning Guide
Charge Batteries 24 Hours Before — Charge the Planet Eclipse Gtek 160R's battery fully before your first session. Bring a spare — a low battery causes dump-fire and board errors that mimic broken gun symptoms.
Lube Bolt & Carrier Before Air — Slide the bolt back by hand — it should move freely. Apply Dow 33 to all bolt and carrier O-rings. Never lube the solenoid.
Set Operating Pressure to Spec — The Planet Eclipse Gtek 160R runs at ~140 psi. Set your HPR per the manual — never exceed rated pressure.
Chronograph via HPR, Then Dwell — With eyes ON, fire 5 shots and read the chrono. Adjust HPR to approach your target velocity (usually 280 fps). Change dwell (1ms at a time) only after HPR is dialed.
Keep Anti-Chop Eyes ON — Turn eyes ON for your first outing. A slight hesitation is normal — a force-feed loader (Dye Rotor, Virtue Spire) eliminates it entirely.
Set Firing Mode Before the Field — Set the gun to semi-auto mode. Most recreational fields enforce semi-auto — confirm mode is correct before your first game.
Maintenance Schedule
Interval
Task
Detail
After every outing
Barrel, bolt & exterior clean
Squeegee twice, bolt wipe, screws snug. Clean eye ports with a dry cotton swab.
Every 5 sessions
Bolt O-ring lube & cup seal check
Clean with isopropyl, dry, apply Dow 33. Inspect cup seal — replace if deformed.
Every 6 months
Valve & fitting service
Re-lube all O-rings. Check all fittings and inline regulator if present.
Annually
Full teardown & O-ring replacement
Complete disassembly, full O-ring kit replacement, inspect springs.
Tool-less Zick rod bolt removal; minimal upkeep.
Common Problems & Troubleshooting
Wide velocity spread
Cause: Worn bolt O-rings (most common); LPR drift
Fix: Bolt carrier O-ring wear is the #1 cause of inconsistency in guns like the Planet Eclipse Gtek 160R. Remove bolt, inspect O-rings, re-lube or replace as a set.
Gun won't power on
Cause: Low battery voltage; terminal corrosion
Fix: Test battery — should read 9V+ (alkaline) or 7.4V+ (LiPo). Clean terminals with isopropyl. Check the manual for the factory reset sequence.
Air dumps continuously
Cause: Solenoid failure; low battery
Fix: De-gas immediately. Check battery first — low voltage causes dump-fire. If battery is good, inspect solenoid for debris or O-ring failure.
Double-firing / bounce
Cause: Dwell too high; debounce too sensitive
Fix: Reduce dwell 1ms at a time until resolved. Never go below 4ms on spool guns.
Eyes not working with eyes on
Cause: Paint residue blocking eye ports
Fix: Clean eye ports with a dry cotton swab — this fixes 95% of apparent eye failures.
Firing mode won't change
Cause: Board lock mode
Fix: Download the board manual PDF — the unlock sequence is a button-hold pattern during power-on.
Upgrade Path
Trigger
Barrel inserts
Regulator
Frequently Asked Questions
Is the Planet Eclipse Gtek 160R good for beginners?
Yes, with some paintball experience. The Planet Eclipse Gtek 160R rewards players who understand basic maintenance and operation.
Does the Planet Eclipse Gtek 160R run on CO2 or HPA?
Compatible with HPA. HPA is required — CO2 can damage solenoid O-rings on electropneumatic guns.
What is the operating pressure of the Planet Eclipse Gtek 160R?
The Planet Eclipse Gtek 160R operates at ~140 psi. Match your regulator output to this spec.
How hard is the Planet Eclipse Gtek 160R to maintain?
Easy — basic bolt cleaning every few sessions. Tool-less Zick rod bolt removal; minimal upkeep.
What loader does the Planet Eclipse Gtek 160R need?
A force-feed loader (Dye Rotor, Virtue Spire) is needed for the Planet Eclipse Gtek 160R's fire rate. A gravity hopper limits you to ~6 BPS.
How much does the Planet Eclipse Gtek 160R cost?
New: $N/A MSRP, typically $300-420 (used) on the street. Used prices vary — check BST forums and eBay for current asking prices.
What barrel thread does the Planet Eclipse Gtek 160R use?
The Planet Eclipse Gtek 160R shoots .68 caliber. Confirm the specific thread pattern for your variant before ordering a barrel.
What firing modes does the Planet Eclipse Gtek 160R support?
Supported modes: semi-auto, ramping. Most recreational fields require semi-auto only.
How heavy is the Planet Eclipse Gtek 160R?
2 lbs unloaded. With a full hopper and HPA tank, expect roughly 4.5–5.5 lbs total.
Is the Planet Eclipse Gtek 160R worth buying?
The first Gtek to carry the Gamma Core, delivering near-flagship performance at a mid price; a strong used pickup. Strengths: Flagship-adjacent shot quality, Easy maintenance. Trade-offs: Superseded by 170R/180R, Used-only.