The Christensen Arms MPR (Multi-Purpose Rifle) is a rimfire rifle chambered in .22 WMR, built around a carbon fiber-wrapped steel barrel and an AR-style layout. The 16-inch match-grade threaded barrel (1:14" twist, 1/2"x28 muzzle thread) sits inside M-LOK handguards, and the TriggerTech trigger gives a clean break with a short reset. A 30+1 round capacity and the adjustable stock with MagneLock technology round out a platform that works equally well for small game and the range. 
 

Key Specifications 

• Brand: Christensen Arms 
• Category: Rimfire Rifles 
• Model: MPR 
• Caliber: .22 WMR (Winchester Magnum Rimfire) 
• Capacity: 30+1 rounds 
• Barrel Length: 16 inches 
• Twist Rate: 1:14" 
• Barrel Finish: Carbon Fiber 
• Barrel Material: Steel 
• Receiver Description: Picatinny Rail for easy optics mounting 
• Grips: Black Polymer 
• Handguards: M-LOK 
• Safety Mechanism: Lever safety 
• Thread Pattern: 1/2"x28 
• Stock Description: Adjustable stock with MagneLock Technology 
• Barrel Description: Match Grade Threaded barrel 
• Receiver Finish: Black Nitride 
• Trigger Type: TriggerTech 
   

Detailed Features 

 
The carbon fiber wrap over the steel barrel keeps weight down without softening rigidity or affecting barrel harmonics at distance. MagneLock on the stock lets you dial length of pull quickly. The magnetic latch holds firmly once set, which matters when multiple shooters share the rifle. M-LOK handguards accept lights, bipods, or any standard accessory without adding rail weight you don't need. The TriggerTech trigger is the most shooter-noticed upgrade here: it breaks cleanly and resets short, which makes follow-up shot cadence noticeably more consistent than a factory milspec pull. 
 
The 1/2"x28 threading is suppressor-ready and accepts most common muzzle devices without an adapter. 
 

Usage 

 
At .22 WMR with a match barrel, the MPR is accurate enough for competitive rimfire events and practical enough for varmint work. The caliber hits harder than .22 LR at range while still keeping meat damage low on small game. The 30-round magazine means fewer reloads during range sessions. The adjustable stock and light carry weight also make it a reasonable fit for younger or smaller-framed shooters who want a capable platform without fighting ergonomics.

Owners of the Christensen Arms MPR in .22 WMR tend to focus on two things: the weight and the accuracy. The carbon fiber construction comes up in nearly every positive review. The rifle is noticeably lighter than comparable rimfire platforms, which matters over a long range session or a day of carrying through the field. Accuracy reports are consistently good, with most users finding it performs well for both target work and small game.

Build quality and fit-and-finish get positive marks, and the TriggerTech pull is frequently called out as a highlight. The 30-round capacity is also a common talking point. Extended range sessions without constant reloading appeals to a lot of users.

The main criticism is price. The MPR sits at the higher end of the rimfire market, and some prospective buyers find it hard to justify against less expensive alternatives. Stock availability has been an occasional frustration as well.

New shooters sometimes note there's a learning curve adapting to a precision-oriented platform, though most treat it as a positive challenge rather than a dealbreaker. A handful of users have reported cycling issues with specific ammunition brands, a known consideration with .22 WMR semi-auto actions generally. Most find the platform reliable once they settle on an ammo type that feeds consistently.