G&P Stoner 63 TDC-7 Hop Up Assembly
Precise adjustment. Proven consistency. Drop-in performance.
The Bull Craft G&P Stoner 63 TDC-7 Hop Up Assembly upgrades your platform with true Top Dead Center adjustment, delivering more consistent pressure, improved accuracy, and easier tuning compared to side-adjust designs.
This is a complete, ready-to-install assembly, including the arm pin, two hop nubs (different sizes), and wheel O-ring. Built around our latest June 2023 revision, it’s engineered for clean fitment, reliable sealing, and compatibility with aftermarket AEG inner barrels.
Features
✅ TDC Adjustment System — consistent, centered hop pressure
✅ Complete Assembly — arm pin, 2 hop nubs, wheel O-ring included
✅ Improved Accuracy & Repeatability
✅ Compatible with Aftermarket AEG Inner Barrels
✅ Latest Revision (June 2023) — refined fitment and reliability
✅ Drop-In Installation — no modification required
✅ Designed for G&P Stoner 63 Platforms
Nozzle Compatibility
? AEG: 19.6mm nozzle
? HPA: #18 nozzle
Built for shooters who want easy tuning, consistent flight, and dependable performance without chasing adjustments.
Dial it in.
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Do not recommend
It has adjustability in the nub pusher height but it either applies too much or barely enough. hop up. Then when it is barely enough the ring seems loose. When inserting it through the front trunion it can be difficult due to the small gaps and friction. Then when I was removing it from the gun It broke. It may be a user error as I pulled the barrel not pushing from the hop up.
