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The Minelab Manticore M15 coil is the answer when your stock 11-inch coil is leaving depth and ground coverage on the table on open sites. Its 15 x 12-inch elliptical Double-D is the largest coil Minelab makes for the Manticore, and the performance gap on clean, lightly hunted ground is real and measurable. We stock the full Minelab coil lineup, so you can compare options before committing.
What's Included
- 15 x 12-inch M15 Double-D waterproof search coil
- Fitted skidplate
Why You Need the M15 in Your Arsenal
- Genuine depth gains on open, clean ground. The M15's larger footprint reaches targets the stock coil misses below 8 inches, giving the Minelab Manticore a measurable advantage on underhunted agricultural land and lightly detected fields.
- Cover significantly more ground per sweep. The wider swing path lets you work a large site faster. On expansive beach stretches or open fields, ground coverage is how you find more targets in a session without hunting longer.
- Waterproof to 5 m (16 ft). The M15 runs in dry sand, wet sand, and the surf line with no coil swap needed.
- Full Multi-IQ+ and 2D Target ID carry through unchanged. Switching to the M15 does not compromise the Manticore's target intelligence. The 2D display gives accurate tone and VDI readings even on deep signals.
- Skidplate included from day one. Minelab includes the fitted skidplate in the box, so the coil face is protected on your first hunt.
Where the M15 Excels in the Field
Open Fields and Pastures
On agricultural fields, pastures, and open estate grounds with relatively low mineralization, the M15 changes what the Manticore can reach. The wider sweep covers more area per pass, and targets sitting below 8 inches become consistently reachable. Raise Recovery Speed one or two steps above your usual field setting to manage any additional noise from the larger coil area. For a full breakdown of how the Minelab Manticore M15 coil fits alongside every other Manticore option, see our Manticore coils guide.
Beach Hunting
Waterproof to 5 m, the M15 is just as capable in the surf and shallow water as it is across dry sand. On wide, open beach sites that have not been worked to exhaustion, the coverage advantage lets you cover productive stretches faster than a smaller coil allows. Beach Mode handles saltwater ground balance automatically. If you move into a section with heavier iron or tighter target spacing, the M9 is the right tool for that transition.
Large Historical Sites
On lightly hunted parks, commons, and former estate grounds where deep material has gone untouched for years, the M15's depth advantage matters most. These are the sites where targets at 10 to 12 inches are reachable with the right coil, and covering the full footprint efficiently matters as much as raw sensitivity.

Minelab Manticore M15 Coil Specifications
- Coil Type: Double-D (DD)
- Shape: Elliptical
- Dimensions: 15 x 12 inches
- Weight (with skidplate): 650 g (1.43 lbs)
- Waterproof Depth: 5 m (16 ft)
- Compatible Detectors: Minelab Manticore only
- What's Included: Fitted skidplate
- SKU: 3011-0423
Why Buy from Serious Detecting
We are an authorized Minelab dealer, which means the M15 carries full manufacturer warranty coverage and genuine factory support. Our team hunts with Manticore gear in the field, so coil questions get answers from real experience. The M15 ships free to the continental US, and if you find it for less at another authorized US dealer, we will match that price. Our 30-day return policy covers you if the coil is not the right fit.
Customer Questions & Expert Answers about the MINELAB 15 x 12" M15 DD Waterproof Coil for Manticore Metal Detector
Customer Reviews & Field Feedback for the MINELAB 15 x 12" M15 DD Waterproof Coil for Manticore Metal Detector
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