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Empire BT D*Fender. Ultimate Guide
A dual-feed milsim gun from Empire's Battle Tested line, common secondhand for budget magfed scenario play.
Empire BT D*Fender Technical Specifications
| Operation | Mechanical inline blowback |
|---|---|
| Firing Modes | semi-auto |
| Caliber | .68 |
| Feed System | Dual-feed (magazine + hopper) |
| Air Source | HPA/CO2 |
| Operating Pressure | ~250 psi |
| Weight (unloaded) | 3.4 lbs |
| Street Price | $120-220 (used) |
| Maintenance | Low |
Notable features: Dual feed, Milsim furniture, Rail system
Pros & Cons
Pros
- Dual feed flexibility
- Durable
- Cheap used
Cons
- Discontinued
- Heavier
Best for: Budget magfed, Scenario, Woodsball
Setup & First-Day Tuning Guide
- Function-Test Magazines Dry. Seat each magazine in the Empire BT D*Fender until it clicks. Partial seating is the #1 cause of misfeeds. A mag that wobbles is not fully seated.
- Break In New Magazine Springs. Load 15 rounds in each new magazine and leave overnight. Repeat 2-3 times. Stiff factory springs cause intermittent feeds that mimic gun problems.
- Bore-Match Barrel to Ammo Type. First Strike rounds need a tighter bore (~.685") than standard .68 balls (~.689"). Install a bore insert kit and match to each ammo type before chronographing.
- Chrono Each Ammo Type Separately. FS rounds and round balls produce different velocities. Chrono both and confirm each stays under your field limit. Check the field's FS rules first.
- Label & Test Magazines Individually. Number each magazine and function-test with 5 rounds. Weak springs or dented feed lips cause intermittent issues that look like gun problems.
- Clean Breech After Every Session. FS rounds leave polymer residue that shaves the tailfin on chambering if buildup is left. Clean the breech with a patch and isopropyl after every outing.
Maintenance Schedule
| Interval | Task | Detail |
|---|---|---|
| After every outing | Barrel, bolt & exterior clean | Squeegee twice, bolt wipe, screws snug. |
| 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. |
Standard blowback care; maintain magazines.
Common Problems & Troubleshooting
- Magazine misfeeds
- Cause: Partial seat; weak spring; debris
- Fix: Reseat the magazine firmly until it clicks. Inspect feed lips; replace the spring if weak.
- First Strike rounds tumble
- Cause: Bore too large for FS projectile
- Fix: Install a .685" bore insert. FS rounds need a tighter bore than round balls.
- Round balls roll out barrel
- Cause: Bore too tight
- Fix: Switch to a .689" bore insert or barrel. FS and round balls need different bore sizes.
- Ball breaks on chambering
- Cause: Dirty breech shaving FS tailfin
- Fix: Clean the breech with a patch and isopropyl after every session.
Upgrade Path
- Magazines
- Barrel
- Optics
Empire BT D*Fender Paintball Gun FAQ
Is the Empire BT D*Fender good for beginners?
Yes, with some paintball experience. The Empire BT D*Fender rewards players who understand basic maintenance and operation.
Does the Empire BT D*Fender run on CO2 or HPA?
Compatible with HPA/CO2. CO2 works but HPA gives significantly more consistent velocity and is better for long-term seal health.
What is the operating pressure of the Empire BT D*Fender?
The Empire BT D*Fender operates at ~250 psi. Match your regulator output to this spec.
How hard is the Empire BT D*Fender to maintain?
Easy. Basic bolt cleaning every few sessions. Standard blowback care; maintain magazines.
What loader does the Empire BT D*Fender need?
Mag-fed guns use proprietary magazines, not hoppers.
How much does the Empire BT D*Fender cost?
New: $N/A MSRP, typically $120-220 (used) on the street. Used prices vary. Check BST forums and eBay for current asking prices.
What barrel thread does the Empire BT D*Fender use?
The Empire BT D*Fender shoots .68 caliber. Confirm the specific thread pattern for your variant before ordering a barrel.
What firing modes does the Empire BT D*Fender support?
Supported modes: semi-auto. Most recreational fields require semi-auto only.
How heavy is the Empire BT D*Fender?
3.4 lbs unloaded. With a full hopper and HPA tank, expect roughly 5.9-6.9 lbs total.
Is the Empire BT D*Fender worth buying?
A dual-feed milsim gun from Empire's Battle Tested line, common secondhand for budget magfed scenario play. Strengths: Dual feed flexibility, Durable. Trade-offs: Discontinued, Heavier.
Compare prices and see live listings on the Empire BT D*Fender gun page.