Primary Weapons Systems: Piston Driven Success

Published on September 14, 2018
Duration: 56:51

This video provides an expert overview of Primary Weapons Systems (PWS) rifles, focusing on their long-stroke piston operating system. Dean, PWS CTO, details the company's history, the technical advantages of their piston design over Direct Impingement (DI) systems, and specific features like the Triad muzzle device, PicLok handguard, and proprietary buffer system. The discussion highlights improved reliability, cleaner operation, and consistent accuracy across various calibers.

Quick Summary

Primary Weapons Systems (PWS) utilizes a long-stroke piston system, inspired by AK designs, for enhanced reliability and cleaner operation compared to Direct Impingement (DI) AR-15s. Key features include optimized dwell time, a proprietary ratchet-lock castle nut, the 'PicLok' handguard, and 'LifeCoat' finishing for reduced friction.

Chapters

  1. 00:00Introduction & Naming Conventions
  2. 00:55PWS Company History
  3. 06:10Development of the Piston System
  4. 11:56Piston vs. Direct Impingement Maintenance
  5. 15:08Muzzle Devices and Handguard Features
  6. 18:45Lower Receiver and Buffer System
  7. 21:11Internal Mechanics and Dwell Time
  8. 27:45Coatings and Calibers

Frequently Asked Questions

What are the main advantages of PWS long-stroke piston systems?

PWS long-stroke piston systems offer enhanced reliability, especially in adverse conditions, and operate significantly cleaner than Direct Impingement (DI) systems. They vent carbon and heat forward, requiring less frequent lubrication and maintenance, and provide a smoother recoil impulse.

How does PWS differentiate its rifle models?

PWS uses 'MK1' to denote their small-frame rifles chambered in calibers like 5.56 NATO and .223 Wylde, while 'MK2' designates their large-frame rifles for calibers such as .308 Win and 6.5 Creedmoor. 'Mod 1' and 'Mod 2' refer to different generations or versions of these platforms.

What is the 'PicLok' handguard system?

The 'PicLok' handguard, featured on PWS Mod 2 rifles, is an innovative design that combines the modularity of M-LOK slots with integrated sections of traditional Picatinny rail. This allows for a slimmer profile while still offering versatile mounting options for accessories.

What is 'LifeCoat' and how does it benefit PWS firearms?

'LifeCoat' is PWS's proprietary finish, a lithium-embedded nitride applied to moving parts. It's designed to reduce friction, minimize wear, and shorten the break-in period, contributing to smoother operation and enhanced long-term reliability of the firearm.

More Tactical & Gear Videos You Might Like

More from Brownells, Inc.

View all →