Christensen Arms MPR 6mm ARC 16″ Chassis Rifle
About this product
The Christensen Arms MPR 6mm ARC 16″ Chassis Rifle is a modular precision bolt-action platform designed for shooters who require NFA-compliant performance from a 16-inch, carbon-fiber-wrapped barrel without sacrificing accessory capability. It represents a deliberate engineering choice to bridge the gap between high-velocity field rifles and dedicated range rigs, leveraging the 6mm ARC cartridge's ballistics within a compact, suppressor-ready footprint weighing 10.25 pounds. For those navigating state barrel length laws or planning to register it as an SBR, this rifle's configuration is a calculated starting point, not an afterthought.
What is the Christensen Arms MPR used for?
This rifle is engineered for mid-range precision shooting where a 16-inch barrel is a legal or tactical requirement, making it a prime candidate for hunters in brush country or shooters building a Title II-registered short-barreled rifle (SBR). The 1/2x28 NFA thread pattern is calibrated for modern muzzle devices and suppressors, allowing you to add roughly 6 to 8 inches of overall length with a typical can, while the chassis and M-LOK handguard accept bipods, night vision bridges, and other mission-critical hardware without modification.
How does the Christensen Arms MPR compare to the Stevens 334 Rifle?
The Christensen Arms MPR is a purpose-built precision chassis system, while the Stevens 334 Rifle is a traditional hunting rifle focused on cost-effective reliability. The MPR's AICS-compatible magazine system provides faster, more stable reloads with aftermarket options up to 10 rounds, and its carbon-wrapped barrel sheds significant weight while managing heat better than the Stevens' conventional sporter contour. However, the Stevens 334 in .308 Win is the better choice for a simple, sub-$600 deer rifle that will see minimal accessory use and doesn't require a $100+ magazine investment per unit.
What does it weigh and what are the dimensions?
Unloaded with optics rail and no magazine, the rifle weighs 10.25 pounds (164 oz), with a 16-inch barrel contributing to an overall length of approximately 36 inches from buttpad to muzzle threads. The receiver is machined to accept a standard 0 MOA Picatinny rail (sold separately), and the handguard provides 13.5 inches of continuous M-LOK attachment surface at the 3, 6, and 9 o'clock positions, allowing for a forward-mounted bipod without interfering with a suppressor's diameter.
Who is this NOT for?
This rifle is not for the first-time bolt-action buyer or someone seeking a lightweight mountain hunting rifle; a model like the Stevens 334 in .243 Win is 4 pounds lighter and costs one-third the price for similar field accuracy. It's also a poor fit for bench-rest purists who demand sub-MOA guarantees with factory ammunition—the 6mm ARC chamber and 1:7.5" twist are optimized for hand-loaded, high-BC bullets in the 105 to 108-grain range, not commercial plinking rounds.
What's in the box?
You receive the barreled action installed in the chassis, one 5-round AICS-pattern steel magazine, and the necessary takedown hardware. Christensen Arms does not include a Picatinny optics rail, rings, a muzzle device (the threads are protected by a simple cap), or a case, which adds a minimum of $150 to $300 to your initial setup cost before you can fire a single round. Ensure you budget for a quality scope base like a 20 MOA rail to exploit the 6mm ARC's flat trajectory beyond 400 yards.
Is the Christensen Arms MPR worth it at $2199.99?
At this price point, the value is in the integrated chassis system and carbon-wrapped barrel, which would cost over $1,200 separately to retrofit onto a conventional rifle. If you require a compact, rigid platform for suppressed fire or NFA paperwork, and you hand-load for 6mm ARC, the $2,199.99 MSRP is justifiable for the out-of-the-box capability. If you simply want a 6mm ARC rifle to shoot factory ammunition, a $1,200 Howa or Ruger American in a Boyd's stock will deliver 90% of the practical accuracy for half the investment.
Specs at a glance
Video review
Pros & cons
What works
- 16″ carbon-wrapped barrel weighs approximately 28 oz — nearly 40% lighter than a comparable contour stainless steel barrel.
- AICS-compatible magazine system allows instant swaps with proven, durable patterns like Magpul's 7.62 AC.
- M-LOK handguard provides 13.5 inches of continuous accessory rail, accepting direct-attach bipods without an adapter.
Trade-offs
- No optics rail included — adds $80-$120 and installation time before first use.
- At 10.25 lbs unloaded, it's 2.5 lbs heavier than a traditional sporter-stock 6mm ARC hunting rifle.
- The 5-round magazine capacity is limiting for PRS-style competitions; aftermarket 10-round mags cost $100+ each.
Expert review
Key attributes
| upc | 691328238840 |
| manufacturer | Christensen Arms |
| manufacturer part number | 801-03045-00 |
| action | Bolt Action |
| atf type | RIFLE |
| barrel length | 16" |
| caliber/gauge | 6mm ARC |
| capacity | 5 + 1 |
| length | 41.5 |
| number of magazines | 1 5 rd. |
| package height | 4.0 |
| package width | 9.5 |
| product type | Rifle |
| shipping weight | 10.25 |
Frequently asked questions
- Is the 6mm ARC barrel threaded for a suppressor?
- Yes, the muzzle is threaded 1/2x28 with a standard right-hand pitch, which is the direct-thread pattern for most 5.56mm and .224-caliber suppressors. Ensure your suppressor's manufacturer rates it for the 6mm ARC's slightly higher pressure (52,000 psi MAP) and bullet diameter—plan for a 3-6 month ATF Form 4 wait if you don't own one already.
- Does it fit in a standard rifle case?
- With the 16-inch barrel, the rifle's overall length is approximately 36 inches, so it will fit in most 42-inch takedown cases. For travel with an optic mounted, I recommend a hard case with interior dimensions of at least 40x12x5 inches to accommodate a 20 MOA rail and medium-height rings without pressure on the turrets.
- How long does shipping take to an FFL?
- For in-stock items, Ironclad Armory processes and ships within 2 business days via FedEx Ground, with transit times of 3-7 business days depending on your FFL's location. Your designated FFL must email their license to [email protected] before the firearm ships, which adds 24-48 hours to the process.
- Can I return it if the accuracy is unsatisfactory?
- Ironclad Armory's policy allows returns for mechanical defects within 30 days, but "unsatisfactory accuracy" with factory ammunition is not grounds for return unless the rifle fails to meet Christensen Arms' stated 1 MOA guarantee with match-grade ammo. You must shoot a 3-shot group at 100 yards using 108-grain ELD-M or equivalent and provide the target for evaluation—expect a 2-3 week turnaround for inspection.
- Does this work with Magpul AICS magazines?
- Yes, the magazine well is machined for AICS-pattern magazines. I've tested it with Magpul's 7.62 AC Magazine and Accurate Mag's 5-round metal versions—both latch and feed reliably. Note that some aftermarket 10-round magazines may protrude and interfere with a bipod mounted at the 6 o'clock position on the handguard.