Christensen Arms MPR Rimfire 18″ Threaded Barrel, Tungsten
Specs at a glance
About this product
The Christensen Arms MPR Rimfire 18″ Threaded Barrel, Tungsten is a precision rimfire rifle built for shooters who want competition-grade accuracy in a compact, packable package. This rifle pairs a lightweight billet aluminum receiver with a carbon fiber tension match-grade barrel, a folding MagneLock stock, and an FFT carbon fiber handguard with M-LOK slots. It accepts Ruger BX-1 magazines and uses a TriggerTech-compatible Remington 700-style trigger. Designed for range work, small-game hunting, and rimfire competitions, the MPR Rimfire emphasizes repeatable accuracy and easy serviceability.
| Manufacturer | Christensen Arms |
|---|---|
| Model | MPR Rimfire |
| Material | Billet aluminum receiver, carbon fiber handguard and barrel tension sleeve |
| Compatibility | Ruger BX-1 magazines, TriggerTech-compatible Remington 700-style triggers |
| Finish | Tungsten Cerakote |
| Weight | 5.1 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Carbon Fiber Tension Barrel: Match-grade, threaded 18″ barrel wrapped in carbon fiber. This design reduces weight and dissipates heat faster, keeping your shots consistent round after round.
- Folding MagneLock Stock: The stock locks up solid when deployed and folds compact for transport. Why it matters: You can carry this rifle in a backpack or small case without losing zero.
- FFT Carbon Fiber Handguard with M-LOK: Full float tube design with M-LOK slots at 3, 6, and 9 o’clock. Why it matters: Mount a bipod, light, or sling without adding bulky rails.
- Multiple QD Mounts: Integrated QD cups on the stock and handguard. Why it matters: Swap between a sling and a shooting rest in seconds.
- TriggerTech-Compatible Trigger: Uses a Remington 700-style trigger. Why it matters: Upgrade to a Timney or TriggerTech match trigger easily for a lighter, crisper pull.
Who It’s For
This rifle is for rimfire shooters who want a lightweight, accurate platform that can handle everything from benchrest competitions to squirrel hunting. It’s a great choice for new gun owners who want a reliable, easy-to-shoot rifle that won’t break the bank on ammo. Experienced shooters will appreciate the build quality and upgrade potential.
Pros & Cons
- Pros: Lightweight at 5.1 lbs, accurate carbon fiber barrel, folds compact, accepts common Ruger BX-1 mags, easy trigger upgrade.
- Cons: The carbon fiber handguard can get warm during rapid fire, and the folding stock may feel a bit stiff out of the box.
Comparison
| Feature | Christensen Arms MPR Rimfire | Geissele Super 700 | Timney Triggers Remington 700 |
|---|---|---|---|
| Weight | 5.1 lbs | 7.2 lbs (barreled action) | N/A (trigger only) |
| Barrel | Carbon fiber tension, 18″ threaded | 416R stainless steel, 26″ | N/A |
| Stock | Folding MagneLock | Fixed chassis | N/A |
| Magazine | Ruger BX-1 | Remington 700 style | N/A |
| Price | $1,925.32 | $2,100+ | $150-$250 |
Note: The Geissele Super 700 is a complete barreled action, not a full rifle, and the Timney trigger is a drop-in upgrade. The MPR Rimfire offers a complete, ready-to-shoot package with a lighter build and more compact design.
What makes the Christensen Arms MPR Rimfire different from other rimfire rifles?
Its carbon fiber barrel and folding stock make it one of the lightest and most packable precision rimfire rifles available. The build quality and accuracy rival rifles costing twice as much.
Can I use a suppressor with the threaded barrel?
Yes, the 18″ barrel is threaded 1/2x28, and the handguard is cut short enough to clear most rimfire suppressors. Just make sure your suppressor is rated for .22 LR.
What triggers work with this rifle?
Any Remington 700-style trigger with the TriggerTech footprint will work. Popular options include Timney, TriggerTech, and Geissele triggers. Installation is straightforward and doesn’t require gunsmithing.
Is the stock easy to fold and lock?
Yes, the MagneLock system uses a magnetic latch that holds the stock securely when folded and locks positively when deployed. Some users report it’s a little stiff at first, but it breaks in with use.
What kind of accuracy can I expect?
With quality match ammo, many shooters report sub-MOA groups at 50 yards. The carbon fiber barrel helps maintain consistency even during longer strings of fire.
✓ Nationwide delivery (all 50 states)
✓ Ships 1-2 business days
✓ 30-day returns
✓ Secure checkout
Shop more bolt action rifles in our Bolt Action Rifles collection, or browse our Rimfire Rifles for other options. Check out our Christensen Arms page for the full lineup.
Last updated: April 2026