Black knife(p+)
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If you bought your full buy limit on Black knife(p+) right now, you'd clear roughly 494.52M GP after the 2% GE tax. That's the ceiling. The actual margin shifts every few minutes, especially after Wednesday updates and weekend supply spikes.
A finely balanced throwing knife. Members-only on the GE. Buy limit 7,000 per 4 hours. A 2% Grand Exchange tax applies to sales, capped at 5,000,000 GP per item.
How Black knife(p+) trades on the Grand Exchange
Weapons range from low-tier commodities to BiS rare drops. Buy limits shrink and spreads widen sharply as value rises. A very high buy limit means one full cycle can move a lot of capital, so the margin per unit does not need to be large for the flip to be worth doing. Because it is members-only, it is only visible on the Grand Exchange for P2P accounts.
Live flip margin
Don't miss the next move on Black knife(p+)
The margin can swing 30% within an hour after an OSRS update or a weekend supply shift. Set a price alert in GE IQ and you'll get pinged the second it crosses your target, no manual checking needed.
Set up an alert for Black knife(p+) →4,500+ items tracked live · 100% free · No signup
GE IQ is a single-page tool that grades every OSRS flip in real time. Built by a flipper, for flippers. Black knife(p+) is one of thousands you can track, alert on, and stack in your portfolio.
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