MasterPiece Arms MPA 65BA-SL: Multiple Barrels, Calibers

MasterPiece Arms announced it was introducing a new long gun called the MPA 65BA-SL Bolt Action Rifle.

The new MPA 65BA-SL Bolt Action Rifle uses the shooter’s choice of a MasterPiece Arms Tactical Aluminum Chassis or the company’s Competition Chassis. MasterPiece arms uses a Curtis Custom Axiom action. This action uses a three lug bolt with a 60˚ throw. The receiver is made of machined 416 stainless steel, and the bolt has a diamond-like coating (DLC.)

The standard MPA 65BA-SL Bolt Action Rifle comes chambered in 6.5 Creedmoor and has a 24″ hand lapped Spencer barrel. The base model rifle has a barrel with a Sendero profile. Other barrel lengths and profiles are available.

MasterPiece Arms uses the West Texas Ordnance Switch Lug System. This allows the shooter to swap barrels in 5 minutes without affecting accuracy. This system allows for the use of different length barrels plus the capability of swapping calibers. According to the company, a single Torx wrench is all you need to make a barrel change.

These rifles use AICS compatible magazines, and a single mag ships with the rifle. As one might expect, there are a variety of other features on this gun – many of which derive from the company’s chassis. Some of them include:

  • Trigger Tech trigger with a 1-3 pound option
  • built in bubble level
  • night vision bridge
  • monopod (included with the Tactical chassis)
  • removable front bridge
  • Cerakote finish

The base rifle has a suggested retail price of $3,250. While that is out of range for many shooters, the company promises the rifle delivers a 3/8″ (or better) MOA.

Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is


  • Edeco

    Ah, short throw and a promised accuracy numba – MPA has their head in the game. I don’t have $3K budget or room in the artillery park for a bolt action tho :S

  • Roy Rapoport

    I fear I’m being pedantic, but is the term
    3/8″ MOA
    make sense? I would assume it’d be
    3/8″ at 100yds
    3/8 MOA
    But adding the double quotes confuses things.

    • Edeco

      Hmmm, yes. Redundant and ambiguous since an MOA @ 100 yards is a little more than 1″

    • Patrick R. – Senior Writer

      .38 MOA. Sometimes the plugins on our back end do screwy things.

  • Jeff Smith

    It’s kind of strange that a company makes both MAC 10/11 clones (a gun known for being cheap and spraying bullets [that being said, I’ve fired one of their MAC 11 clones and loved it]) and $3,000 precision rifles. Kind of neat that they make things on both ends of the spectrum.

    • Flounder

      Don’t forget their 5.7 version of a mac 10! Or their AR. Or their pocket pistols.

      They make or made all kinds of weird stuff that never took off too much. Or they couldn’t meet demand and demand went away.

      They are just a strange company. It would be interesting to be involved with them. If it was not a nightmare.

      • Edeco

        MPA is going HAM! It’s like someone got Kel Tec wet or fed them after midnight!