Cain Arms
Smith & Wesson M&P40 Pro Series 5" Base Pads
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Manufacturer
Smith & Wesson
Model & version
M&P40 Pro Series 5"
Mounting details
MIL-STD-1913 Picatinny, S&W M&P rear-sight dovetail (non-optics-ready slides)
Parts listed
5 total
Smith & Wesson M&P40 Pro Series 5"Base Pads
What the compatibility labels mean
How we knowHow we check compatibility
- Lab testedFit checked by Firearm Lab for the recorded setup.
- Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
- Interface matchMounting details match, but this exact model and part have not been confirmed to fit together.
Check your exact model and part before ordering. Fitment limits
Cain Arms1
Based on manufacturer information — Oct 2026.
Floyd's Custom Shop1
S&W M&P 10RD FULL SIZE .40 MAG PLATE
Strike Industries1
Extended Magazine Plate for M&P 9/40 Full Size
Part no. SI-EMP-MP9&40-BK
TangoDown1
Vickers Tactical Magazine Floor Plates VTMFP-004MP
Part no. VTMFP-004MP
Warne1
S&W M&P 9/40, Blue, Capacity +0 Extended Base Pad
Part no. 3302