P90: FN's Bullpup PDW

Published on July 2, 2021
Duration: 16:21

This guide details the field stripping process for the FN P90, as demonstrated by Ian McCollum. It covers the simple, single-button disassembly for accessing the barrel, optic, and bolt assembly. The process highlights the P90's straightforward maintenance design, emphasizing the dual recoil springs and the ease of removing major components for cleaning.

Quick Summary

The FN P90, developed by FN Herstal, is a Personal Defense Weapon (PDW) designed to counter body armor with its specialized 5.7x28mm round. It features a unique 50-round top-mounted rotary magazine, bullpup configuration, and ambidextrous controls with downward casing ejection. Its simple blowback operation and dual recoil springs contribute to its reliability.

Chapters

  1. 00:00Introduction and Development
  2. 01:13Design Purpose: Countering Body Armor
  3. 03:06Unique Magazine System
  4. 04:075.7x28mm Cartridge Technicals
  5. 05:44Rotary Feed Mechanism
  6. 07:23Ergonomics and Controls
  7. 08:29Optics and Sights
  8. 09:48Disassembly and Internal Mechanics
  9. 11:55Fire Control Group
  10. 13:41NATO Trials and Adoption

Frequently Asked Questions

What makes the FN P90's magazine system unique?

The FN P90 uses a distinctive 50-round translucent polymer magazine that sits parallel to the barrel on top. It employs a rotary feed mechanism to turn rounds 90 degrees for chambering, allowing for high-density horizontal ammunition storage.

What was the primary design purpose of the FN P90?

The FN P90 was specifically developed by FN Herstal to counter threats from adversaries equipped with advanced body armor, such as Russian paratroopers, where standard 9mm rounds were deemed ineffective.

How does the FN P90 handle spent casings?

The FN P90 features a downward ejection port for spent casings. This design choice enhances its ambidextrous usability and helps to keep the firearm cleaner during operation, especially for left-handed shooters.

What are the key mechanical features of the FN P90?

The P90 operates via a simple blowback action and incorporates dual recoil springs. It also includes a 'rate of fire stabilizer' to ensure reliable full-auto operation by preventing bolt bounce.

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