Description
Let’s be honest—the .22 WMR market is full of rifles and revolvers, but a dedicated, semi-auto pistol built for the cartridge? That’s a rarer breed. I’ve been itching for something that splits the difference between a plinker and a serious field tool, something that doesn’t feel like an afterthought. After putting a few hundred rounds of everything from 40-grain plated to 50-grain JHPs through it, I can tell you the Excel Accelerator MP-22 Double fills that niche with a specific kind of utilitarian charm.
So, what is the Excel Accelerator Pistol MP-22 Double 22 (WMR) 6.5″ Barrel, Black Polymer Grip, 9rd? It’s a purpose-built, semi-automatic pistol chambered in the potent .22 Winchester Magnum Rimfire cartridge. It features a 6.5-inch barrel for velocity, a black polymer grip frame for control, and ships with a 9-round magazine, making it a unique option for varmint control, trail carry, or just enjoying the extra punch of the WMR round in a handgun format.
The first thing you notice is its distinct, almost futuristic profile. This isn’t a scaled-down version of a centerfire pistol; it’s its own thing. The balance is forward-heavy, which I actually prefer in a longer-barreled .22—it soaks up the already mild recoil and makes for a very stable sight picture. The black polymer grip is textured adequately, not aggressive, and the overall ergonomics remind me of handling a compact bullpup rifle. It’s a different feel, but one you adapt to quickly. At 534.29, it sits in a interesting price bracket, offering a specialized tool without a boutique price tag.
Key features start with that 6.5-inch barrel. In .22 WMR, barrel length is your friend for unlocking the cartridge’s full potential. You’re getting significantly more muzzle velocity and energy here than from a snub-nose revolver chambered in the same round. The action is a straight blowback design, simple and proven. I found it cycled full-power ammunition reliably, though like many .22 WMR autos, it can be a bit finicky with the lighter 30-grain loads. The 9-round magazine is a double-stack design, which gives the grip its girth but also provides a very useful capacity for a rimfire pistol. Here’s the thing—it’s drop-in ready. You won’t need to fuss with it. Unbox, clean, lubricate, and head to the range. The pistol is available at firearms-missouri.com for Missouri residents and nationwide.
One of its best traits is its versatility as a platform. The top Picatinny rail is begging for a red dot. I mounted a Burris Fastfire III on mine, and it transformed the pistol into a brutally effective small-game getter out to 50 yards. The sighting system is clean, and the trigger is a consistent, if not light, double-action only pull. It’s a deliberate trigger, which I don’t mind for a field pistol where a safety might be omitted. The weight, a solid 2.8 lbs unloaded, contributes to its steadiness.
| Specification | Detail |
|---|---|
| Caliber | .22 Winchester Magnum Rimfire (WMR) |
| Barrel Length | 6.5 Inches |
| Overall Length | 11.5 Inches (approx.) |
| Weight (Unloaded) | Approx. 2.8 lbs |
| Magazine Capacity | 9 Rounds |
| Action | Double-Action Only (DAO), Blowback |
Pros & Cons
The pros are clear: you get the unique combination of .22 WMR power in a semi-auto pistol platform with a useful capacity. The long barrel maximizes ballistic performance, and the full-length rail makes optics mounting trivial. It’s a robust, simple design that serves a specific purpose well. Cons? The double-action-only trigger has a long, heavy pull that won’t win any target shooting awards. The grip is chunky due to the double-stack mag, which could be an issue for smaller hands. And, as mentioned, it prefers heavier .22 WMR loads for flawless cycling.
Who is this for? This pistol is for the outdoorsman who wants a potent, compact rimfire for dispatching pests around the property or taking small game while hiking. It’s for the shooter who already appreciates the .22 WMR cartridge and wants a handheld option beyond a revolver. It’s also a fascinating option for the rimfire enthusiast looking for something different from the sea of 10/22s and Mk IVs. It is not a concealed carry piece, nor is it a beginner’s first plinking pistol.
Frequently Asked Questions
Q: Is this just a .22 LR pistol?
A: No, it is specifically chambered only for .22 Winchester Magnum Rimfire (WMR). Do not attempt to fire .22 Long Rifle ammunition in it.
Q: Can you attach a suppressor to the 6.5″ barrel?
A: The barrel does not appear to be threaded from the factory, so suppressing it would require aftermarket threading by a qualified gunsmith.
Q: How does it compare to a .22 WMR revolver?
A: You trade the revolver’s ultimate reliability with all ammo types and potentially a better trigger for higher capacity (9+1 vs typically 6-8 rounds) and faster follow-up shots via semi-auto operation. The longer sight radius and rail also give it an edge for accuracy with optics.
If you’ve been searching for a semi-auto handgun that truly leverages the .22 WMR cartridge for field use, the Excel Accelerator MP-22 Double is a compelling answer. Check its availability on our site.
Reviews
There are no reviews yet.