Christensen Arms MPR Rimfire .22 WMR 18″ Desert Brown
Specs at a glance
About this product
The Christensen Arms MPR Rimfire .22 WMR 18″ Desert Brown is a chassis-style rimfire rifle that combines compact packability with precision performance. It uses a carbon fiber tension barrel and a lightweight billet aluminum chassis that accepts a Remington 700-style trigger footprint. The rifle features an 18″ threaded match-grade barrel, a folding stock with MagneLock technology, and a 0-MOA Picatinny rail for optics mounting. Per Christensen Arms specs, this model delivers sub-MOA accuracy out of the box, making it a reliable choice for small-game hunting and target shooting.
| Manufacturer | Christensen Arms |
|---|---|
| Model | MPR Rimfire .22 WMR |
| Material | Carbon fiber tension barrel, billet aluminum chassis |
| Compatibility | Remington 700-style trigger footprint |
| Finish | Desert Brown Cerakote |
| Weight | 5.2 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Carbon Fiber Tension Barrel: The free-floated carbon fiber wrap reduces barrel whip and heat buildup, which means consistent accuracy shot after shot.
- MagneLock Folding Stock: The stock locks rigidly when deployed and folds compactly for storage or transport, making it easy to pack in a backpack or case.
- Remington 700 Trigger Footprint: You can swap in your favorite aftermarket trigger from brands like Timney or Geissele without any gunsmithing, giving you control over pull weight and feel.
- Threaded Match-Grade Barrel: The 18″ barrel is threaded 1/2×28, so you can attach a suppressor or muzzle brake directly—no adapter needed.
- 0-MOA Picatinny Rail: A flat top rail provides a solid mounting surface for optics, and the 0-MOA design keeps your scope centered for rimfire ranges.
Who It's For
This rifle is built for the rimfire shooter who wants a lightweight, packable platform that still shoots like a full-size precision rig. It’s ideal for hunters who need a compact rifle for walking through brush, as well as target shooters who want to practice fundamentals without burning through centerfire ammo. New gun owners will appreciate the low recoil and easy handling, while experienced shooters will value the upgrade potential.
Pros & Cons
- Pros: Sub-MOA accuracy out of the box; lightweight at 5.2 lbs; folding stock for compact storage; accepts Remington 700 triggers; threaded barrel for suppressor use.
- Cons: The Desert Brown Cerakote may show wear faster on high-contact areas if you use it heavily without a protective coating. Also, the .22 WMR ammo is pricier than standard .22 LR, so factor that into your shooting budget.
Comparison
| Feature | Christensen Arms MPR Rimfire | Zev Technologies OZ9 | Geissele Automatics Super Duty |
|---|---|---|---|
| Caliber | .22 WMR | 9mm | 5.56 NATO |
| Action Type | Bolt-action rimfire | Striker-fired pistol | Direct impingement AR-15 |
| Weight | 5.2 lbs | 26 oz (pistol only) | 6.5 lbs (rifle) |
| Barrel Length | 18″ | 4.5″ | 16″ |
| Stock/Frame | Folding chassis | Modular grip frame | Fixed stock |
| Best Use | Small-game hunting, target practice | Concealed carry, competition | Home defense, duty use |
FAQ
What is the barrel twist rate on the Christensen Arms MPR Rimfire .22 WMR?
Per Christensen Arms specs, the barrel has a 1:16″ twist rate, which is optimized for stabilizing .22 WMR bullets from 30 to 40 grains.
Does this rifle come with a magazine?
Yes, it ships with one 10-round rotary magazine. Extra magazines are available separately from Christensen Arms or aftermarket sources.
Can I use .22 LR ammunition in this rifle?
No, the MPR Rimfire is chambered specifically for .22 WMR (.22 Magnum). Using .22 LR can cause unsafe pressure and damage the rifle.
What type of optics mount does it use?
It has a full-length 0-MOA Picatinny rail, so you can mount any scope or red dot with standard Picatinny rings or a one-piece mount.
Is the folding stock compatible with aftermarket chassis?
The stock is integral to the MPR chassis and is not removable for aftermarket swaps. However, the chassis itself accepts Remington 700 triggers and stocks.
Why Buy From Us
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships within 1-2 business days
- ✅ 30-day return policy
- ✅ Secure checkout with encrypted payment
Looking for more bolt-action rifles? Check out our Bolt Action Rifles or explore Rimfire Rifles. For accessories, see our Rifle Parts & Upgrades.
Last updated: April 2026