Christensen Arms MPR Rimfire .22 WMR 20-inch Black
About this product
The Christensen Arms MPR Rimfire .22 WMR 20-inch Black is a bolt-action rifle that pairs a carbon-fiber tension barrel with an aluminum chassis to prioritize lightweight precision for serious rimfire work. This isn't your grandpa's plinker—it’s a purpose-built chassis system engineered for consistent, sub-MOA results with the potent .22 WMR cartridge. At 6.2 pounds, it’s a platform designed for shooters who demand centerfire-like ergonomics in a compact, packable rimfire.
What is the Christensen Arms MPR Rimfire used for?
This rifle is built for precision small-game hunting and structured rimfire competition where shot placement at extended range matters. The match-grade barrel and stable chassis system deliver the consistency needed for ethical shots on varmints like prairie dogs or foxes out to 150-175 yards. It’s also ideal for training drills that mirror centerfire rifle handling without the cost and concussion, especially in its folded configuration for vehicle or backpack transport.
How does the Christensen Arms MPR Rimfire compare to the Stevens 334 Rifle?
The Christensen MPR is a specialized precision chassis rifle, while the Stevens 334 Rifle is a traditional hunting rifle built for cost-effective reliability. The MPR’s 7075 aluminum billet chassis and folding stock with MagneLock provide superior modularity and a stable shooting platform, shaving crucial seconds off follow-up shots in a competition setting. However, the Stevens 334 chambered in .308 Win is the unequivocally better choice for hunting deer-sized game at typical woods ranges, where its simpler design and proven action shine in harsh conditions.
What does it weigh and what are the dimensions?
Unloaded, the rifle weighs 6.2 pounds (99.2 ounces). With its 20-inch barrel and stock folded, the overall length is approximately 26 inches, making it packable in a standard backpack. The length of pull is adjustable from 12.5 to 14.5 inches via included spacers, allowing most shooters to achieve a proper cheek weld without aftermarket parts.
Who is this NOT for?
This rifle is not for the budget-conscious plinker or someone seeking a first .22. At $1799.99, its performance envelope is wasted on tin cans at 50 yards. It’s also a poor choice for hunters solely after squirrels or rabbits where standard .22 LR is more than adequate and ammunition costs a fraction of .22 WMR. If your needs are best met by a classic, all-purpose shotgun, consider the Stevens 555 Sporting 20 Gauge instead.
What’s in the box?
You receive the complete rifle with a 0-MOA Picatinny rail installed, one 9-round Ruger BX-1 magazine, and a factory hard case for transport. Christensen Arms typically includes the necessary Allen keys for adjusting the cheek piece and length of pull, but always verify the contents against the packing slip upon arrival.
Is the Christensen Arms MPR Rimfire worth it at $1799.99?
Yes, but only if you operate within its specific niche of precision rimfire disciplines. The price buys you a purpose-built system—carbon fiber barrel, billet chassis, TriggerTech trigger—that is ready for competition or demanding field use without further gunsmithing. For the shooter who values ounces and consistent tenths-of-an-inch groups with a rimfire, the investment is justifiable. For everyone else, a standard hunting rifle offers far greater utility per dollar.
Specs at a glance
Video review
Pros & cons
What works
- Weighs 6.2 lbs — nearly 2 pounds lighter than many precision rimfire chassis rifles using steel barrels.
- Folds to 26 inches — fits in a standard 28-inch backpack for ultimate packability in the field.
- Features a match-grade TriggerTech trigger with a consistent 2.5-3.5 lb pull weight out of the box.
- Adjustable length of pull from 12.5 to 14.5 inches — accommodates a wide range of shooter sizes without tools.
Trade-offs
- Chambered only in .22 WMR — ammunition costs are 3-4x higher than .22 LR, making high-volume practice expensive.
- No iron sights included — requires an immediate optics purchase and mount, adding at least $150-$500 to the initial cost.
- Aluminum chassis transmits more felt recoil impulse than a polymer stock — noticeable during extended shooting sessions.
Expert review
Key attributes
| upc | 840290523632 |
| manufacturer | Christensen Arms |
| manufacturer part number | 801-12021-02 |
| action | Bolt Action |
| atf type | RIFLE |
| barrel length | 20" |
| caliber/gauge | .22 Magnum |
| capacity | 9 + 1 |
| length | 41.5 |
| number of magazines | 1 9 rd. |
| package height | 4.0 |
| package width | 9.5 |
| product type | Rifle |
| safety | Lever Action |
| shipping weight | 8.55 |
Frequently asked questions
- Is it compatible with standard Remington 700 triggers?
- Yes. The action uses a Remington 700 footprint, making it directly compatible with any aftermarket TriggerTech, Timney, or Jard trigger unit designed for the R700 short action. The factory-installed TriggerTech is an excellent unit with a crisp break typically set between 2.5 and 3.5 pounds from the factory.
- Does it accept other magazines besides the Ruger BX-1?
- Yes. The chassis is machined to accept Ruger 10/22-pattern rotary magazines. This includes aftermarket options from Magpul and other manufacturers. The included BX-1 magazine has a 9-round capacity, which is standard for .22 WMR in this pattern.
- What size thread protector or suppressor fits the muzzle?
- The barrel is threaded 1/2"-28 UNF. This is the standard thread pitch for .22 caliber suppressors. You will need a thread protector or muzzle device with this thread pattern. Most suppressor manufacturers, like SilencerCo and Dead Air, offer direct-thread mounts in this size.
- How long does it take to receive after ordering?
- For in-stock items, processing and shipping typically take 3-5 business days before the carrier tracking is provided. Transit time varies by carrier and destination, but continental US delivery usually adds another 3-7 business days. All firearms ship to your chosen FFL dealer for transfer.