W&A Wesson Arms

Common malfunctions in Smith & Wesson pistols and how to fix them

Smith & Wesson pistols have earned a loyal following among Australian shooters, from weekend competitors at pistol clubs in Brisbane and Melbourne to recreational target shooters keeping their collection in Sydney or Perth. The brand's reputation for reliability is well-deserved, but even the best-engineered firearms can develop hiccups after thousands of rounds, exposure to harsh conditions, or simple wear on internal springs. Understanding the most frequent malfunctions and their remedies helps owners keep their pistols running smoothly and avoids a frustrating trip to the range.

Most issues encountered with M&P, Shield, or Performance Center models fall into a handful of familiar categories: failures to feed or eject, light primer strikes, magazine-related feeding problems, and trigger inconsistencies. While some of these point to genuine part failures, many stem from routine maintenance that has been skipped, ammunition choices that don't match the firearm, or environmental factors that Australian shooters face more often than owners in cooler, drier climates. Addressing these problems usually begins at the workbench, not the gunsmith's counter.

Before diagnosing any fault, it is worth confirming that the pistol itself is legal to own and use in your state or territory. Australian law requires a Category H licence for handguns, issued after a probationary period and confirmed membership in an approved pistol club affiliated with an organisation such as Pistol Australia or the SSAA. Pistols must be stored in a compliant safe, with ammunition locked separately, and transporting them to and from approved ranges typically requires the firearm to be unloaded and secured. Once those requirements are in place, working through malfunctions becomes a much more straightforward exercise.

Failures to feed and eject

A failure to feed (FTF) usually shows up as a round that stalls partway out of the magazine or refuses to chamber. The slide may lock back without a round in the breech, or the shooter hears an unusual click instead of the familiar snap of a fresh round seating. Failures to eject (FTE), including the notorious stovepipe where a spent casing stands upright in the ejection port, often accompany weak springs, dirty extractors, or underpowered ammunition.

The most common cause is a worn magazine spring that no longer pushes rounds up with enough force. A drop test on a flat surface can reveal this: if the magazine falls freely without a slight hesitation, the spring is likely fatigued. Replacement magazines from the original manufacturer restore reliable feeding, and owners can browse a wide selection of factory and aftermarket options through retailers like wesson arms when restocking consumables.

Extractor tension and lubrication also play a major role. The extractor claw should hook firmly over the rim of a spent case; a thin layer of quality gun oil on the contact surfaces lets the slide strip a round cleanly without excess drag. Brass shaving on the case head after firing, or a small dimple where the case rim contacts the breech face, often signals that the extractor needs cleaning, lubrication, or replacement.

Quick bench checks before deeper diagnosis

Misfires and light primer strikes

A misfire is unmistakable: the trigger pulls, the hammer drops, and nothing happens. Light primer strikes leave a faint mark on the primer rather than a deep, round indent, and they tend to appear intermittently. Before assuming the worst, swap ammunition brands to rule out a bad batch of primers or underpowered commercial loads. Cheap imported ammunition sometimes uses harder primers that don't ignite reliably in modern striker-fired actions.

If different ammunition still produces light strikes, the firing pin and its channel deserve attention. Carbon buildup, dried oil, or a small fragment of debris can cushion the firing pin's travel. Field-stripping the slide, removing the firing pin, and wiping it clean with a solvent-soaked patch often restores full energy transfer. Light strikes that persist after cleaning usually point to a worn firing pin spring, which is an inexpensive part to replace.

A subtler cause is a worn striker safety plunger inside the M&P platform. This small spring-loaded block ensures the firing pin cannot move unless the trigger is fully pressed. When it wears out, the firing pin may lack the final snap needed to strike the primer with full force. Replacement plungers are available as small parts kits, and installation requires only a punch and a steady hand.

Magazine problems that mimic mechanical faults

Magazines take more abuse than almost any other component. They are dropped, loaded to capacity, and left loaded for months at a time, all of which stress the spring and feed lips. Many apparent feeding problems disappear the moment a fresh magazine is introduced. Before tearing down the pistol, run a single, known-good magazine through a hundred rounds to establish a baseline.

Feed lip deformation is harder to spot. Press the lips together gently and watch how a loaded round sits; if it tilts forward or backward, the lips may be spread too wide. A magazine tool or even careful bending with a thumbnail can correct minor deformations, but heavily damaged magazines should be retired rather than repaired. Polymer magazines from Smith & Wesson, like those shipping with the Shield, are usually replaced whole rather than disassembled.

Australia's varied climate also affects magazine reliability. In coastal cities such as Sydney or Perth, salt-laden air can accelerate corrosion on steel feed lips, while high humidity across much of Queensland encourages surface oxidation on aluminium followers. A light film of silicone or corrosion-inhibiting oil on the magazine body, followed by wiping the exterior dry before loading, keeps most climate-related feeding issues at bay.

Trigger and safety inconsistencies

M&P pistols use a trigger safety blade in addition to the main trigger shoe. When this small hinged piece sticks or fails to reset, the trigger can feel gritty, fail to release cleanly, or simply refuse to fire. Often the cause is dried lubricant that has migrated from the trigger bar pivots into the safety blade channel. A few drops of light oil worked into the mechanism, followed by dry-firing the action where safe and legal, usually resolves the issue.

Another source of inconsistency is the sear engagement and the polymer trigger bar that connects the trigger to the firing mechanism. As these surfaces wear, the trigger pull can develop a creep that wasn't there from the factory, or a long reset that slows follow-up fire. Replacement trigger kits, including those marketed under the Apex Tactical brand, offer crisper breaks and shorter resets for owners who shoot competitively, although they should be installed by someone comfortable with the trigger mechanism or by a licensed gunsmith.

For shooters in colder parts of Australia, such as Tasmania or the Victorian Alps, the cold can stiffen grease that was appropriate for summer use. Switching to a lighter lubricant for winter sessions keeps the trigger bar moving freely, and many competitive shooters in Melbourne's IPSC clubs carry a small bottle of low-viscosity oil specifically for colder-range mornings.

Environmental factors unique to Australian conditions

Australia presents challenges that owners in temperate European or North American climates rarely encounter. The red dust of the outback, the salt spray of the southern coast, the high humidity of the tropical north, and the cold, wet mornings of the southern states each leave their mark on a Smith & Wesson pistol. Field-stripping and a complete wipe-down after every outdoor range session is more than a recommendation; it is a habit that prevents most climate-related malfunctions from ever starting.

Storage matters just as much as cleaning. Australian regulations require handguns to be stored in a safe approved to the relevant state standard, usually with the bolts secured to a fixed structure. Beyond legal compliance, a stable indoor environment keeps spring temper intact and prevents the condensation that forms when a cold firearm is brought into a warm, humid room. A small dehumidifier or silica gel packs inside the safe go a long way toward protecting internal parts.

For range days in remote areas, particularly in Western Australia or the Northern Territory, shooters often contend with fine grit that finds its way into the action despite the best precautions. A portable cleaning kit with a bore snake, a few patches, and a small bottle of oil lets owners address problems on the spot rather than waiting until the next bench session. Pistols that ride in soft range bags rather than hard cases tend to collect more debris at the seams, and switching to a sealed hard case pays for itself the first time a sudden coastal squall hits.

Range-day habits that prevent most problems

A Smith & Wesson pistol will run for many thousands of rounds with very little attention, and most malfunctions trace back to one of the same handful of causes covered here. Keeping magazines fresh, the action clean, and the lubricant matched to the climate covers the majority of problems an Australian shooter is likely to face. Treat maintenance as part of the sport, and the firearm will keep performing when it matters most.