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Winchester Repeating Arms 521159102 Wildcat SR 22 LR 10+1 16.50″ Flat Dark Earth Threaded Barrel, Flat Dark Earth Picatinny Rail Polymer Receiver, Adj Cheek Piece & LOP OD Green Synthetic Stock
$359.89
Lightweight .22 LR semiauto with threaded barrel, adjustable stock, and Picatinny rail—suppressor ready at only 4 pounds.
The Winchester Repeating Arms 521159102 Wildcat SR 22 LR 10+1 16.50″ Flat Dark Earth Threaded Barrel, Flat Dark Earth Picatinny Rail Polymer Receiver, Adj Cheek Piece & LOP OD Green Synthetic Stock is a modern autoloader built for the shooter who demands rimfire performance without the legacy weight. Weighing just 4 pounds, this rifle combines a lightweight OD Green composite stock with a Flat Dark Earth Perma-Cote finish on the barrel and receiver. The 16.50″ threaded muzzle is suppressor-ready, and the 10-round rotary magazine includes a last-round bolt hold-open. It also accepts aftermarket 10/22 magazines, giving you flexibility at the range or in the field.
| Manufacturer | Winchester Repeating Arms |
|---|---|
| Model | Wildcat SR |
| Material | OD Green composite stock, polymer receiver |
| Compatibility | Accepts aftermarket 10/22 magazines (per manufacturer specs) |
| Finish | Flat Dark Earth Perma-Cote on barrel and receiver |
| Weight | 4 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Threaded Muzzle & 16.50″ Barrel — The factory-threaded barrel (1/2×28 TPI) allows direct suppressor mounting, reducing report and recoil for quieter, more controlled shooting. Why it matters: It turns a plinker into a versatile tool for training, pest control, or backyard practice.
- Adjustable Cheek Piece & Length of Pull (LOP) — The OD Green synthetic stock features a tool-free adjustable cheek piece and LOP, letting you customize fit for different shooters or shooting positions. Why it matters: Proper ergonomics improve accuracy and reduce fatigue during long sessions.
- Last-Round Bolt Hold-Open — The 10-round rotary magazine locks the bolt rearward after the final round, giving you a visual and tactile cue that the gun is empty. Why it matters: It simplifies reload drills and keeps the action open for safe handling.
- Flat Dark Earth Picatinny Rail — The receiver is topped with a full-length Picatinny rail, ready for optics, red dots, or backup iron sights. Why it matters: No adapter needed—mount your preferred sight system directly, improving acquisition speed and accuracy.
- Lightweight OD Green Composite Construction — At only 4 pounds, the Wildcat SR is easy to carry all day and quick to shoulder. Why it matters: Lighter weight means less fatigue on the move, making it ideal for youth shooters, hikers, or anyone who values portability.
Who It’s For
This rifle is for the rimfire enthusiast who appreciates modern upgrades—threaded barrel, adjustable stock, and a Picatinny rail—in a package that respects Winchester’s legacy. It suits collectors who want a lightweight suppressor host, plinkers who shoot hundreds of rounds per session, and hunters who need a reliable .22 LR for small game. The adjustable stock also makes it a strong choice for introducing new shooters to semiauto rifles.
Pros & Cons
- Pros: Suppressor-ready from the factory; accepts aftermarket 10/22 magazines; fully adjustable stock; incredibly lightweight (4 lbs); Perma-Cote finish resists wear.
- Cons: The polymer receiver may feel less premium to some shooters accustomed to all-steel construction; the rotary magazine, while reliable, can be slower to load than a stick mag.
Comparison
| Feature | Winchester Wildcat SR | Ruger 10/22 Carbine | Smith & Wesson M&P15-22 |
|---|---|---|---|
| Weight | 4 lbs | 5.0 lbs | 5.5 lbs |
| Barrel Length | 16.50″ threaded | 18.5″ non-threaded | 16.5″ threaded |
| Stock Adjustability | Cheek piece & LOP | Fixed | Fixed (collapsible on some models) |
| Magazine Compatibility | Rotary (10/22 aftermarket) | Rotary (proprietary) | AR-15 style stick |
| Finish | Flat Dark Earth Perma-Cote | Blued | Black anodized |
The Wildcat SR outshines the Ruger 10/22 Carbine in weight and adjustability, while matching the M&P15-22 on barrel threading. Its ability to accept aftermarket 10/22 magazines gives it an edge in parts availability, though the M&P15-22 offers a more AR-like manual of arms.
FAQ
Does the Winchester Wildcat SR accept aftermarket 10/22 magazines?
Yes. Per Winchester specs, the Wildcat SR is designed to accept aftermarket 10/22-style rotary magazines. This gives you access to a wide range of extended-capacity and high-performance options from companies like Ruger and aftermarket brands.
Is the barrel threaded for a suppressor?
Yes. The 16.50″ barrel comes factory-threaded with a 1/2×28 TPI pattern, making it ready for most .22 LR suppressors. A thread protector is included.
What is the weight of the Wildcat SR?
According to manufacturer specs, the rifle weighs just 4 pounds unloaded. This makes it one of the lightest semiauto .22 LR rifles on the market.
Can I mount a red dot or scope?
Absolutely. The receiver features a full-length Flat Dark Earth Picatinny rail, so you can mount any standard optics without adapters. It’s ready for red dots, scopes, or backup iron sights.
Is the stock adjustable for different shooters?
Yes. The OD Green synthetic stock has a tool-free adjustable cheek piece and length of pull (LOP). This allows you to customize fit for different shooters, including youth or smaller-framed users.
Trust & Delivery
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Last updated: April 2026
Explore more in our Rimfire Rifles and Winchester Repeating Arms collections.
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