MPA BA Evolution Rifle


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Please Click Here to see our latest delivery and lead times for all Bolt Action Rifles and Chassis

The Evolution Rifle program from MPA provides an opportunity for consumers with existing Remington 700 (Short or Long Actions) or Savage (Short or Long) rifles or barreled actions the ability to send these in to MPA for a complete rifle Evolution (Other action brands will be considered). Here is the process:

  1. Send in your existing barreled action. MPA will remove the barrel (and return to the customer) from the action.
  2. We will “blueprint” the action including truing the face of the receiver and the lugs plus re-cuting the threads. We will also square up the receiver lugs. The bolt face will be squared and the bolt lugs will be lapped.
  3. Install a Spencer/MPA barrel. The barrel contour will be to the customers specifications along with barrel length (up to 27″). The caliber and chamber will also be to customer specs. The barrel itself will be one of our 416R stainless, button rifled, stress relieved and hand lapped match grade barrels. When the chamber and muzzle are cut, both will be indicated into less than .0001″ of runout from the chamber to the bore.
  4. Install in either our Matrix, Hybrid, BA Competition or BA Ultra-Lite Chassis.
  5. Customer picks the cerakote color.
  6. Install a 20MOA Scope Base
  7. Options include trigger designation, cerakoting the action, addition of muzzle brake and bedding the action.

On the bedding of the customers action, heavy consideration will be given to the condition of the outside geometric configuration. If the action has issues with straightness, roundness or cylindricity, the action should be bedded. If not, the action will mate up properly with our v-bedding system used on our entire line of BA Chassis. Specifically, if the action is not round and straight, when its pulled down into the v-bed, distortion will occur, which works against the accuracy potential of the rifle. When the customers action is received, we will perform an inspection on one of our CMM’s (Coordinate Measuring Machines) to determine the actions configuration.


  • Matrix Chassis Build $2325
  • BA Competition Build $2075
  • BA Hybrid Build $2000
  • BA Ultra Lite $1850
  • Builds Include Action/Bolt Truing, MPA Barrel + Install, MPA BA Chassis, Rifle Trigger Tech Special Trigger, Scope Base, Thread Protector)
  • Cerakote Action +$75
  • Add MPA DN3 Muzzle Brake +125
  • Bedding Action +$195
  • Other Trigger Options – Call MPA for Pricing

To order the BA Evolution, please contact Phil at 866-803-0000 x4 or email


MPA Bolt Action Evolution Rifle

  • Caliber – Customer Specified
  • Action – Trued – Customer Supplied (Remington 700 or Savage)
  • Bolt – Trued – Customer Supplied
  • Barrel – Spencer/MPA Hand Lapped Barrel
  • Chassis – MPA Tactical Aluminum Chassis
  • Muzzle Brake – MPA Muzzle Brake
  • Trigger: Trigger Tech Special (Included), Timney or Jewel (options)
  • User Locate-able Barricade stop system compatible (requires purchase of rotating barricade stop)
  • Magazine – AICS or AW Mag Compatible. (5 or 10 Round AICS Type Magazine Included)
  • Built in Inclinometer
  • Machined Thumb Notch
  • Adjustable Length of Pull
  • Adjustable Cheek Riser


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


  • Masterpiece Arms Tactical Chassis System (Matrix, BA Comp, Hybrid or Ultra Lite)
  • Produced from 6061 Aluminum
  • V-Bedding System with Additional clearance for Glass Bedding Action and Straight Section of Barrel
  • MPA Buttstock with Adjustable Cheek Riser, Length of Pull and Monopod
  • Front mounted Bridge with Upper Picatinny Rail (BA Chassis or Competition Chassis)
  • Lower mounted Picatinny Rail
  • 20MOA Scope Base
  • Cerakote Finish – Multiple Colors Available
  • User Locate-able Barricade stop system compatible (requires purchase of rotating barricade stop)
  • Built in Bubble Level
  • Thumb Notch
  • Bag Rider
  • Spigot Mount
  • Recoil Pad is Adjustable for Height and Cant


We will install a Trigger Tech Special Trigger (action and pull weight dependent) as the standard trigger or install a Timney or  Jewel (as an option).

Accuracy Guarantee

  • 1/2 MOA

Rifle Case

  • Plano Basic Rifle Case


  • Chassis Weight – 5.2 lbs (BA Chassis) 5.0 lbs (Comp Chassis) or 2.9 lbs (BA Lite)
  • Rifle Weight – Depends on Chassis Type, Barrel Length and Contour
  • Barrel Twist – Depends on Caliber
  • Barrel Length – Customer Specified
  • Barrel Muzzle Thread – 5/8-24 TPI
  • Barrel Profile – Sendero Profile (others available)
  • Spigot Mount
  • Bag Rider
  • 2-Round Holder
  • Barrier Stop Capable – Included
  • Coating – Cerakote
  • Length of Pull – 13.5-15″
  • Trigger – Customer Determines
  • Trigger Pull – 16 0z-4 lbs.

Custom Cerakote Colors add $135 for the chassis body and $65 for the barreled action. Check with MPA for all the custom colors available.

Additional information

Weight 20 lbs
Chassis Type

Matrix, Ultra Lite, BA Competition Chassis, Hybrid Chassis

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