Smith & Wesson M&P40 Pro Series 5" Barrels

Browse parts and check the source behind each answer.

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

6 total

Find a part in this list

6 barrels

What the compatibility labels mean

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

KKM Precision
M&P L/Pro .357Sig (5.01 OAL) for 1.0 & 2.0
Based on manufacturer information — Oct 2026.
KKM Precision
M&P L/Pro .357Sig with 1/2×28 Suppressor Threads (5.45 OAL) for 1.0 & 2.0
Based on manufacturer information — Oct 2026.
KKM Precision
M&P L/Pro 40S&W (5.01 OAL) for 1.0 & 2.0
Based on manufacturer information — Oct 2026.
KKM Precision
M&P L/Pro 40S&W to 9MM (5.01 OAL) for 1.0 AND 2.0
Based on manufacturer information — Oct 2026.
KKM Precision
M&P L/Pro 40S&W to 9MM with 1/2×28 Suppressor Threads (5.45 OAL) for 1.0 & 2.0
Based on manufacturer information — Oct 2026.
KKM Precision
M&P L/Pro 40S&W with 9/16×24 Suppressor Threads (5.45 OAL) for 1.0 & 2.0
Based on manufacturer information — Oct 2026.