Description
You’re clearing a fence line on your property, and a coyote appears at 75 yards. You need a shot that’s flat, fast, and has authority—but you don’t want the weight or report of a centerfire rifle slowing you down all day. That’s the scenario where the Excel Arms Accelerator Rifle MR-22, .22 WMR, 18″, 9rd makes its case. It’s a purpose-built, semi-automatic rimfire rifle chambered for the potent .22 Winchester Magnum Rimfire cartridge. Designed for the shooter who needs reliable, extended-range performance in a lightweight, low-recoil platform, it bridges the gap between standard .22 LR plinkers and larger hunting calibers.
Here’s the thing—the .22 WMR is a different animal than its little brother. Out of the MR-22’s 18-inch barrel, it drives a 40-grain projectile at over 1900 feet per second, delivering significantly more energy downrange with a much flatter trajectory. That means greater effectiveness on small game and varmints at distances where a .22 Long Rifle starts to drop like a rock. The rifle itself is a clean, modern design. Its blowback-operated action is built for reliability with the hotter magnum round, and it comes drop-in ready with a crisp trigger and a textured synthetic stock that provides a solid grip in all conditions. At a total weight of just under 6 pounds, it’s a rifle you can carry for miles without fatigue.
Key Features & Performance
The Accelerator MR-22 is built around a durable, corrosion-resistant alloy receiver. The 9-round detachable box magazine is a standout, offering ample capacity for a day in the field without being overly bulky. The magazine release is intuitively placed, and reloads are quick and straightforward. The 18-inch barrel provides an optimal balance for the .22 WMR cartridge, allowing it to reach its full velocity potential while keeping the overall length maneuverable in brush or from a vehicle window.
One of the most practical aspects is its optics readiness. The receiver is drilled and tapped, accepting standard rimfire scope bases. This makes it a perfect host for optics from brands like Vortex, Leupold, or Bushnell. Slap on a 3-9x40mm scope, and you have a system capable of precise shots out to 125 yards and beyond. The open sights are usable in a pinch, but this rifle truly shines when topped with glass. The synthetic stock features a raised comb for a natural cheek weld with a scope installed, and the textured finish ensures a secure hold, rain or shine.
| Specification | Detail |
|---|---|
| Caliber | .22 Winchester Magnum Rimfire (.22 WMR) |
| Barrel Length | 18 Inches |
| Overall Length | Approx. 37.5 Inches |
| Weight | Approx. 5.8 lbs |
| Magazine Capacity | 9 Rounds |
| Action | Semi-Automatic, Blowback |
| Stock | Synthetic, Textured Finish |
Pros & Cons
Pros: The .22 WMR chambering is the star—offering real-world performance gains over .22 LR. The lightweight build is a major advantage for hunters and hikers. Reliability with the magnum round is solid, and the 9-round capacity is practical. The rifle is optics-ready out of the box, requiring no modification.
Cons: Ammunition cost is higher than .22 LR. The synthetic stock, while durable, is utilitarian. As with all semi-automatic .22 WMR rifles, finding the specific brand of ammunition your gun runs most reliably with may require some testing.
Who Is This Rifle For?
This is the ideal tool for the Missouri landowner, the serious varminter, or the hunter seeking a dedicated small-game rifle. If you spend time controlling pests around barns or fields, need a truck gun that’s always ready, or simply want a rimfire with more reach and punch for hunting squirrels or rabbits, the MR-22 delivers. It’s also a fantastic, low-cost training platform for shooters looking to practice fundamentals with minimal recoil and report, yet with ballistic performance that more closely mirrors centerfire trajectory.
Frequently Asked Questions
Q: Can I use .22 Long Rifle ammunition in this rifle?
A: No. The Excel Arms Accelerator MR-22 is chambered exclusively for the .22 Winchester Magnum Rimfire (.22 WMR). Firing .22 LR in this chamber is unsafe and can cause severe damage to the firearm and injury to the shooter. Always use only the caliber specified on the barrel.
Q: Is the barrel threaded for a suppressor?
A: The standard model features a crowned, non-threaded muzzle. If you require a threaded barrel for a suppressor or other muzzle device, you would need to consult a qualified gunsmith for modification or seek a different model variant, if available.
Q: What type of scope base does it use?
A: The receiver is drilled and tapped for a standard rimfire-style scope base, typically using 3/8″ dovetail or #6-48 screws. Most common rimfire scope rings and one-piece bases will fit directly. For a rock-solid zero, consider a quality one-piece base from a manufacturer like Warne or EGW.
Priced at $598.11, the Excel Arms Accelerator MR-22 presents a focused solution for a specific set of needs. It’s not a plinker; it’s a working rifle built for a cartridge that demands respect. If your requirements call for extended rimfire range and reliable semi-auto performance in a lightweight package, this rifle warrants a close look. It is available at firearms-missouri.com for Missouri residents and nationwide, with an FFL transfer required for firearm purchases. See the full details on our site.
Reviews
There are no reviews yet.