Matrix Pro PMR Rifle


Masterpiece Arms builds World Class Rifles. We start with our industry leading Chassis System, utilize the Best Actions and Triggers produced, and our MPA/Spencer 416R Handlapped Barrels provide some the best shooting, most accurate rifles in existence. Designed, Built and Enhanced by Long Range Shooters and Hunters, our Rifles fulfill the needs of the most discerning shooters.


Please allow 16 to 18 weeks to build this rifle

SKU: N/A Category:

This rifle meets the Production Class requirements for the Precision Rifle Series for 2023.

The Matrix Pro PMR Rifle is a combination of our newest Competition Chassis, the Matrix Pro II, along with the barreled action configuration from our PMR Series Rifles.

The options for this rifle in color and barrel profile are very specific. This gives us the ability to offer this world class rifle at an attractive pricing structure.

Available in a multitude of calibers, the Chassis’ for this rifle are available in Black and Tungsten and the barrel will be a Polished 26″ MPA Match Contour. These economies of scale on the chassis cerakoting process and barrel manufacturing process provides cost reduction to the over rifle package price.

Calibers available are 223, 6BR, 6BRA, 6 Dasher, 6GT, 6mm Creedmoor, 25 Creedmoor, 6.5 Creedmoor, 6.5×47 Lapua, 6.5 PRC, and 308.


  • MPA Short Action (ARC MPA Elite)
  • Wire EDM Bolt Lug Raceways
  • Integral Lug and Scope Base
  • Adjustable Trigger Hanger
  • 3 Lug Head
  • Integral 20 MOA Scope Rail
  • Quick Release Firing Pin Assembly Removal System (Tool Less)
  • Bolt: Three Piece Design of the Bolt, Lugs and Handle
  • Spiral Fluting
  • Black Nitride Coating
  • Mechanical Extractor


  • 416RQ Stainless Steel
  • Precision Gun Drilled, Reamed and Honed
  • Pull Button Rifled
  • Stress Relieved
  • Polished
  • Hand Lapped
  • Bore and Land Inspected on Video Borescope
  • Sheffield Air Gage Inspection to .0001″ on Bore and Rifle Land Variation
  • Chamber is indicated within .0001″ or less – to the bore of the rifle

Chassis System:

  • MPA Matrix Pro II Chassis
  • Masterpiece Arms Matrix Pro with Drop Down Bag Rider
  • Magwell Plate System Ready
  • Produced from 6061 Aluminum
  • V-Bedding System with Additional clearance for Glass Bedding Action and Straight Section of Barrel
  • MPA Matrix with Adjustable Cheek Riser, Length of Pull
  • Built In Bag Rider with Butthook
  • 2 Nesting Bridge section
  • Steel Spigot Mount (Pic Rail and Arca Swiss Rail)
  • Cerakote Finish – Multiple Colors Available
  • Built In Inclinometer leveling system
  • Matrix EVG Grip (Alternate grips are additional)
  • Thumb Notch
  • R.A.T. System Compatible

Thread Protector:

  • MPA Muzzle Thread Protector


  • MPA Trigger (Bix N Andy Tac Sport Pro Custom)
  • Pull Weight: 4 oz-2 lbs


  • 1/2″ MOA or Better

Rifle Case:

  • Plano Basic Rifle Case


  • Total Rifle Weight (16 lbs with 26″ MPA Match  Barrel – Does Not Include Ammo, Bipod, Magazine or Optic)
  • Barrel: 416R Stainless Steel, Handlapped
  • Action: MPA Elite (ARC)
  • Chamber: Zero Runout Chambering Method
  • Muzzle threads: 5/8×24
  • Brake: No Included
  • Chassis Type: Matrix Pro II
  • Chassis Colors: Black or Tungsten
  • Chassis Material: 6061 Aluminum Billet
  • Chassis Coating: H Series Cerakote
  • Magazine: Accurate Mag 10 Round (308) Magazine
  • Chassis Weight: 6.2 lbs
  • Barrel Profile MPA Match Contour
  • Barrel Length: 26″
  • Trigger Type: MPA Trigger (Bix nAndy TacSport Pro Custom) (4oz – 2 lbs)
  • Adjustable Length of Pull: 12.75″ to 14″
  • Cheek Riser: Adjustable
  • Recoil Plate: Adjustable for Height and Cant