Smith & Wesson M&P340 No-Internal-Lock .357 Magnum J-Frame, Scandium-Alloy, XS Tritium Front, 1.875 in, 5-Shot DAO Revolver
This Smith & Wesson M&P340 stands out as the no-internal-lock variant of the lightweight, scandium-alloy J-frame. It pairs a matte black scandium-alloy frame with a stainless steel cylinder wearing a black PVD-type finish, and it features a pinned XS 24/7 tritium front sight. At approximately 13.3 oz unloaded, this DAO, internal-hammer carry revolver delivers .357 Magnum capability in a compact, micro-size package with aftermarket laminated boot-style grips.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The revolver has been very well maintained. Timing and lockup are solid.
What's Included
- Blackhawk size 8 clip-on holster
The M&P340 uses the J-frame Centennial internal-hammer (DAO) configuration with a five-shot, fluted cylinder. It includes an under-lug ejector-rod shroud that protects the ejector rod and keeps the profile streamlined. This example is the no-internal-lock version.
The frame is made from scandium alloy with a matte black finish, while the cylinder is stainless steel with a black PVD-type finish. Dimensions are built for discreet carry: a 1.875 in nominal barrel length, approximately 6.31 in overall length, and about 1.3 in width. Unloaded weight is approximately 13.3 oz.
Sight picture is fast and straightforward with fixed sights: a pinned XS 24/7 tritium dot up front and an integral top-strap rear notch. The double-action-only system with an internal hammer supports snag-resistant carry and consistent trigger strokes.
Chambered in .357 Magnum and factory-rated for .38 Special +P, this revolver offers flexible ammunition options in a compact platform. It is fitted with gray/black laminated boot-style grips (aftermarket, unbranded, non-rubber) that keep the footprint small while providing a firm hold.