Barnacle blaster
Rum, lemon and... crushed barnacles?
155gp
100gp
55gp
+52gp
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—
Price history
1 points · hover for detail
- 30D low
- 100
- 30D high
- 155
- Volatility
- 43.1%
Flip calculator
Includes the 2% Grand Exchange tax
+52gp
+52 per item · +52.00% ROI
- Capital required
- 100 gp
- Gross revenue
- 155 gp
- GE tax (2%, 3/item)
- − 3 gp
- Break-even sell
- 102 gp
Item data
- High alchemy
- 12 gp92.3% below market
- Low alchemy
- 8 gp
- Shop value
- 20 gp
- Weight
- 0.5 kg
- Stack / note
- Not stackable · not noteable
- Released
- Nov 19, 2025
About Barnacle blaster
The Barnacle blaster is a members-only item in Old School RuneScape.
"Rum, lemon and... crushed barnacles?"
Over the last 30 days it traded between 106 and 4,820 gp on the Grand Exchange, averaging 435 gp. About 44 units changed hands per day. The price is down 48.6% across that window. Selling one at the average price costs 8 gp in Grand Exchange tax.
Casting High Level Alchemy returns 12 gp, which is 97.2% below the 30-day average price, so alching a bought one loses money.
How to get Barnacle blaster
3 monsters drop Barnacle blaster, most commonly Medium port reward bag (Unknown), Small port reward bag (Unknown) and Tiny port reward bag (Unknown). Only The Pandemonium (pub) sells it.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Medium port reward bag | Unknown | 1 (noted) |
| Small port reward bag | Unknown | 1 (noted) |
| Tiny port reward bag | Unknown | 1 (noted) |
Sold in shops
| Shop | Price | Stock |
|---|---|---|
| The Pandemonium (pub) | 20 gp | ∞ |
Barnacle blaster price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 182 | 128 | 289 | 898 |
| September 202626d | 469 | 100 | 4,820 | 357 |
| August 202622d | 231 | 100 | 336 | 394 |
| July 202611d | 1,273 | 179 | 12,050 | 52 |
| June 202621d | 125 | 26 | 361 | 3,224 |
| May 20262d | 198 | 152 | 243 | 76 |
| April 20261d | 179 | 179 | 179 | 3 |
| March 2026 | 209 | 117 | 539 | 16,511 |
| February 202622d | 48 | 23 | 159 | 10,100 |
| January 202623d | 47 | 20 | 69 | 10,830 |
Across 10 months of recorded prices Barnacle blaster ranged from 20 gp in January 2026 to 12,050 gp in July 2026, measured over 171 trading days.
The 30-day average of 435 gp sits in the lower third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.