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Most semi-auto pistols chambered in .22 WMR have come and gone over the years, struggling to handle a cartridge that sits in an awkward spot between blowback-friendly and gas-operated territory. Walther's engineers leaned into that challenge and came out the other side with the WMP, a pistol that actually works reliably in this caliber and wraps it all up in a package that feels like a proper, full-size handgun. The OD green polymer frame pairs with a black aluminum slide and a built-in Picatinny rail up front, giving it a rugged, purposeful look that matches what it was built to do.
The big headline feature is the Quad Release, Walther's patented ambidextrous magazine system that gives you four total activation points including both paddle and button releases on either side of the gun. It sounds like overkill until you use it, and then you wonder why every pistol doesn't have one. Lefties, righties, gloved hands, awkward angles, it doesn't matter. Beyond that, the WMP carries over the excellent ergonomics from Walther's PPQ M2 lineage, including the grip geometry, palm swells, and aggressive-but-not-punishing texture that keeps the gun planted without tearing up your hands during long sessions.
The slide comes optic-ready from the factory and includes adapter plates for both Trijicon RMR and Shield RMSc footprints, plus a cover plate if you prefer to run irons. Speaking of irons, the fiber optic front and serrated fixed rear are a solid out-of-the-box setup for fast target acquisition. The 4.5-inch bull-profile barrel with a 1:16.5 right-hand twist wrings solid accuracy out of the .22 WMR cartridge, and independent range tests have consistently shown sub-1.25-inch groups at 25 yards with quality ammo.
The .22 WMR is meaningfully more capable than .22 LR, offering substantially greater velocity and energy while keeping recoil mild enough that follow-up shots are fast and comfortable. That makes the WMP a versatile tool whether you're running it as a ranch or farm sidearm for pest control, using it as a low-recoil training platform, or just having a genuinely great time at the range. Walther recommends 40-grain loads from CCI or Fiocchi for the best results, and it's worth sticking to their recommended ammunition list for reliable feeding. The pistol also strips down easily for cleaning thanks to a takedown lever on the frame, and the included Picatinny rail means you can add a light without any adapter gymnastics.
Walther recommends 40-grain loads, with CCI and Fiocchi being the brands they specifically call out for best reliability. Walther maintains an official recommended ammunition list on their website, and it's worth checking it before experimenting with off-brand or lightweight loads. Sticking to quality 40-grain offerings will give you the most consistent feeding and extraction.
Yes, right out of the box. The slide is optic-ready and the pistol ships with two adapter plates covering the Trijicon RMR and Shield RMSc footprints, so most popular compact red dots will mount up without any extra hardware. A cover plate is also included if you want to keep running the factory iron sights.
The Quad Release is Walther's patented ambidextrous mag release that gives you four total activation points: a standard button release on both sides of the frame, plus European-style paddle releases on either side of the trigger guard. You can drop the magazine any way that feels natural, which is genuinely useful for lefties and for anyone wearing gloves.
The WMP is a versatile outdoor and range pistol that works especially well as a farm or ranch sidearm for pest and varmint control, a low-recoil training platform, or just a really enjoyable range gun. The .22 WMR cartridge offers significantly more energy than .22 LR while keeping muzzle flip mild enough for fast, comfortable shooting.
The WMP's optic-ready slide accepts adapter plates for the Trijicon RMR and Shield RMSc footprints, both of which are included in the box. These two footprints cover a wide range of popular pistol red dots from brands like Trijicon, Holosun, Vortex, and Shield, so you have plenty of options to choose from.
No, Walther kept the takedown process straightforward with a dedicated disassembly lever on the frame. You don't need to pull the trigger to break it down, and the whole process is quick enough that cleaning after a range session is painless. The bull-profile barrel is also easy to run a patch through.
| UPC | 723364232800 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 5220307 |
| Action | |
| ATF Type | Pistol |
| Barrel Length | 4.5" |
| Caliber/Gauge | .22 WMR |
| Capacity | 15 + 1 |
| Color | Black |
| Length | 11.6500 |
| Model | |
| Number of Magazines | 2 |
| Package Height | 2.9 |
| Package Width | 8.8 |
| Product Type | Double Action Only |
| Safety | Trigger |
| Shipping Weight | 3.4 |
| Sights | Fiber Optic Front/Serrated Fixed Rear |
| Sights Type | Fiber Optic Front/Serrated Fixed Rear |
| Slide Description | Optic Ready/Serrated |
| State Restriction (OR) | NO SALE TO OREGON |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
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