Inside a Long Stroke Piston AR-15 | The Primary Weapon Systems "Diablo"

Published on May 21, 2020
Duration: 12:30

This guide details the disassembly of the PWS Mark 1 Mod 2 AR-15, focusing on its unique long-stroke piston system. Expert instruction covers separating receivers, examining the bolt carrier group, and identifying key components like the S7 tool steel piston rod and Nickel Teflon coated bolt. The process highlights the differences from standard AR-15s and short-stroke piston systems, emphasizing the importance of proper buffer configuration for optimal performance.

Quick Summary

The PWS Mark 1 Mod 2 AR-15 distinguishes itself with a long-stroke piston system, akin to an AK-47. Its S7 tool steel piston rod and Nickel Teflon coated bolt simplify cleaning, while the recommended H2 buffer is critical for optimal function. This design offers potential advantages in reliability and maintenance over traditional AR-15 systems.

Chapters

  1. 00:00Introduction to PWS Mark 1 Mod 2
  2. 00:29Long-stroke Piston vs. Short-stroke
  3. 01:10Previous Video Content
  4. 01:48Troubleshooting & Buffer Importance
  5. 02:50Incorrect Buffer Setup
  6. 03:20Beginning Takedown & Buffer Discussion
  7. 05:15Customization & Performance
  8. 06:10PWS Long-Stroke Internals
  9. 08:20Nickel Teflon Bolt Cleaning
  10. 09:05Accessories & Gas Block Maintenance
  11. 10:25Bonus Gun: HK416 Clone

Frequently Asked Questions

What makes the PWS Mark 1 Mod 2 AR-15's operating system unique?

The PWS Mark 1 Mod 2 features a long-stroke piston system, similar to an AK-47, adapted for the AR-15 platform. This differs from standard direct impingement and short-stroke piston systems, offering potential benefits in reliability and ease of cleaning.

What are the key internal components of the PWS Mark 1 Mod 2's long-stroke piston system?

The system includes an S7 tool steel piston rod, a Nickel Teflon coated bolt for easy cleaning, and lacks traditional gas rings. The piston rod has a milled slot for staking screws, and the bolt carrier group is designed for this specific operation.

Why is the buffer important in a PWS Mark 1 Mod 2 AR-15?

The buffer is a crucial component of the operating system. Using the manufacturer-recommended H2 buffer is vital for proper cycling and recoil management, especially when the upper receiver is paired with a non-factory lower receiver.

How does the Nickel Teflon coating benefit the bolt?

The Nickel Teflon coating on the bolt allows for remarkably easy cleaning. Carbon residue can be simply wiped off with a cloth, significantly reducing maintenance time and effort compared to standard bolts.

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