FN PS90: The Space-Age Bullpup Carbine

by
posted on July 24, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
PS90 A

FN America’s P90 was a radical departure from traditional firearm design when it first appeared in the 1990s. The fact it chambered the equally new 5.7x28 mm cartridge set it apart, but then there was the translucent, 50-round polymer magazine riding atop the select-fire personal defense weapon.

The configuration was innovative and unfamiliar to enthusiasts. Mark Keefe, then editor-in-chief of American Rifleman, had range time with the gun a few years later, and explained, “The cartridges are actually mounted sideways in the magazine and take an abrupt 90-degree new turn as they are presented into the feedway. The fully ambidextrous, bottom-ejecting P90, of course, is a bullpup design making it compact and portable.”

The select-fire P90 is only available to law enforcement and military, and one might suggest its looks make it a viable candidate for fielding by the new Space Force. It’s currently in use by the U.S. Secret Service, so there’s no doubting the performance and unfailing reliability in oxygen with gravity, anyway.

Rather than leave a vacuum for earth-bound, law-abiding civilians eager for their own variant, FN has a semi-automatic model available. The FN PS90 has all the looks and is equally unfailing, but you do have to settle for 10- or 30-round-capacity magazines.

Chambering remains 5.7x28 mm, and the blowback-operated gun also fires from a closed bolt. The firearm’s overall length is a nimble 26.23" and it tips the scales at 6.28 lbs. The 16" barrel is hammer forged, chrome lined and ships from the factory with a muzzle brake. Safety, magazine release and charging handle are ambidextrous. With bottom ejection, both righties and lefties are comfortable behind the trigger.

The stock is polymer with an integral hand guard up front and molded-in sling attachment point at the rear. A rail atop the receiver makes mounting a scope or red dot fast, and the PS90 ships with a back-up iron sight. MSRP is $1,799.

Latest

Dark Mountain Arms Stowaway 1
Dark Mountain Arms Stowaway 1

Gun of the Week: Dark Mountain Arms Stowaway

The Dark Mountain Arms Stowaway rifle is a bolt-action, single-shot design chambered for the 5.7x28 mm FN cartridge.

The Armed Citizen® Feb. 27, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

The B22 Jaguar: Beretta's New Cutting-Edge .22

Beretta's new B22 Jaguar is a .22 Long Rifle-chambered pistol optimized for the range, competition and introducing new shooters to the sport. 

Review: Daisy Smart Target System

The Daisy STS is a digital target system geared toward younger shooters and featuring an array of colorful monsters that must be dealt with using a trusty Red Ryder BB gun.

Review: Magpul MOE QD Bipod for M-Lok

Sometimes the simplest changes make the biggest difference, and such is the case with Magpul's latest version of its MOE Bipod.

250 Years Of The U.S. Army: The Smoothbore Musket Era

Across 250 years of history, the actions of the Army have been closely intertwined with the direction and growth of the United States as a nation, and at the heart of it all was the soldier and his longarm.

Interests



Get the best of American Rifleman delivered to your inbox.