BT Internal Valve O-Ring
Elevate your Empire BT-4 Combat marker to peak performance with the precision-engineered BT Internal Valve O-Ring. Far more than a simple spare part, this high-performance seal is the secret weapon that keeps your marker firing smoothly, shot after shot. Whether you’re battling in close-quarters skirmishes or laying down accurate long-range suppressive fire, a flawless seal ensures that every ounce of compressed air does its job—without leaks, pressure drops, or unpredictable shot-to-shot variance.
Crafted from premium-grade nitrile rubber, the BT Internal Valve O-Ring delivers rock-solid durability while maintaining the flexibility needed to seal under high pressure. Its optimized durometer strikes the perfect balance: firm enough to resist extrusion at 800+ PSI, yet soft enough to conform to any microscopic irregularities in the valve housing. The result? A leak-proof barrier that stands up to hundreds of rounds and countless reloads, round after round reliability you can count on in the heat of battle.
But stellar material is only half the story. Each O-Ring is manufactured to ultra-tight tolerances, guaranteeing consistent cross-section and perfectly uniform inner and outer diameters. That meticulous attention to detail translates directly into more consistent bolt movement, crisper trigger response, and unwavering shot velocity—even as temperatures fluctuate and you push your marker to its limits.
Installation takes mere seconds: simply remove your old, worn seal, clean the valve cavity, and slip the new O-Ring into place. No expert tools, no fuss—just a quick swap that instantly restores peak performance. And because it’s an official Empire part (Part #19425), you know it’s engineered to the exact specifications that keep your BT-4 Combat running like new.
Don’t let a tired, brittle seal hold you back. With the Empire Internal Valve O-Ring on your side, you’ll experience rock-steady consistency, razor-sharp accuracy, and the confidence that comes from knowing your equipment won’t let you down. Gear up, lock in your aim, and dominate the field—because every round counts, and every advantage matters.
Key Features and Specifications
- Premium Nitrile Rubber – Delivers exceptional wear resistance and flexibility
- Precision Tolerances – Ensures uniform seal for consistent shot velocity
- High-Pressure Rating – Withstands 800+ PSI without extrusion or blowouts
- Optimized Durometer – Balances firmness and conformity for leak-free performance
- Rapid, Tool-Free Installation – Swap seals in seconds; get back in the game fast
- Official Empire Part #19425 – Guaranteed compatibility with BT-4 Combat markers
- Broad Temperature Range – Reliable sealing from -40°C to +90°C
- Long-Lasting Durability – Engineered to endure hundreds of rounds without failure
- Compact Dimensions – Perfect fit for internal valve cavities, no trimming required
- Field-Ready Reliability – Maintains consistent air pressure for crisp trigger pulls
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