Masterpiece Arms MPAR - The clone of an Australian rifle that was a clone of a Stoner rifle.

Published on April 12, 2022
Duration: 18:00

This video explores the lineage of the Masterpiece Arms MPAR, tracing its roots back to the Armalite AR-180, designed by Eugene Stoner. It then details the Australian LEO rifle, which was influenced by the AR-180, and finally the MPAR itself, a US-made clone of the LEO. The presenter performs field disassembly of all three firearms, highlighting their shared short-stroke gas piston systems and stamped receivers, while also pointing out key differences like bolt head design and charging handle placement.

Quick Summary

The Masterpiece Arms MPAR is a US-made rifle that cloned the Australian LEO, itself influenced by the Armalite AR-180. It features a short-stroke gas piston, stamped receivers, and a left-side charging handle, firing 5.56x45mm NATO. Key differences from its predecessors include an adjustable gas system and a bolt hold-open mechanism.

Chapters

  1. 00:10Introduction to the AR-180
  2. 00:56The Australian LEO Rifle (T2 Mark V)
  3. 03:16Masterpiece Arms MPAR: A US Clone
  4. 04:25Shooting the MPAR
  5. 05:10AR-180 Field Disassembly
  6. 07:01Australian LEO Field Disassembly
  7. 08:59MPA MPAR Field Disassembly & Features
  8. 10:14MPAR Gas System and Takedown
  9. 12:10Bolt Head Comparison
  10. 13:15MPAR Quality and Collectibility
  11. 14:30MPAR Controls and Quirks
  12. 15:42MPAR Production History
  13. 16:46Overall Impression of the MPAR

Frequently Asked Questions

What is the Masterpiece Arms MPAR?

The Masterpiece Arms MPAR is a semi-automatic rifle manufactured in the United States that serves as a clone of the Australian LEO rifle. It features a short-stroke gas piston system, stamped receivers, and a left-side charging handle, and fires the 5.56x45mm NATO cartridge.

What is the lineage of the Masterpiece Arms MPAR?

The MPAR's lineage traces back to the Armalite AR-180, designed by Eugene Stoner. The AR-180 influenced the Australian LEO rifle, which in turn was cloned by Masterpiece Arms to create the MPAR.

What are the key differences between the AR-180, Australian LEO, and MPA MPAR?

The AR-180 has a right-side charging handle. The Australian LEO features a triangular bolt head and an upward-facing charging handle. The MPA MPAR has a left-side charging handle, an adjustable gas system, and a bolt hold-open mechanism, while cloning the LEO's stamped receivers and gas system.

How do you field strip the MPA MPAR?

To field strip the MPA MPAR, first ensure it's unloaded. Then, push a pin on the top rear of the receiver to release a takedown button. Push this button forward, and the rifle will hinge open. Finally, pull the charging handle to the rear to remove the bolt and recoil spring assembly.

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