Editors’ Picks 2018: Heizer PKO 45 Pistol

by
posted on April 30, 2018
** 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. **
newgun13.jpg

Heizer’s PKO 45 is a compact, all-metal, internal-hammer-fired, semi-automatic .45 ACP pistol that measures only eight-tenths of an inch wide. Manufactured by aerospace fabricator Heizer Defense, makers of the similarly slim PAK1, PAR1 and PS1 single-shots, the PKO 45 is unconventional, with a fixed, ported, 2.75" barrel whose axis lies below that of the guide rod assembly and below much of the slide’s mass to enhance accuracy and reduce muzzle flip, respectively. Magazine capacity is five rounds in the flush-fit style or seven for the extended style. The PKO 45 features a manual, bilateral, frame-mounted safety and frontstrap-mounted grip safety along with slide-stop and magazine buttons. Both front and rear sights are dovetailed to the slide. The aluminum-frame PKO 45 weighs approximately 25 ozs. and is available in Ghost Grey, Copperhead and Tactical Black. A titanium-frame variant is in the works. heizerdefense.com

Latest

Kimber 1911 Ds Warrior F
Kimber 1911 Ds Warrior F

The 1911 DS Warrior: Kimber's Budget-Priced Double-Stack

With its new 1911 DS Warrior, Kimber is offering a more affordably priced option to handgun enthusiasts looking for a do-it-all double-stack that still retains key 1911 features.

Staccato Expands HD Lineup With C4X Carry Models

Staccato announced a new flagship model in its HD line of guns at SHOT Show 2026: the HD C4X.

Deciphering (Mostly Nonsensical) Cartridge Nomenclature

If you’re perplexed by the naming practices used by our wildcatting forefathers and cartridge makers but are still curious about what they mean, read on.

The Armed Citizen® Jan. 19, 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.

"9 mm Optimized, But 10 mm Capable:" Dead Air's New RXD910Ti Suppressor

The new Dead Air RXD910Ti harnesses the technology of the patented Triskelion baffle system to make for a 9 mm-optimized silencer that is also capable for use with 10 mm pistol cartridges and more.

Revisiting A World War II Marine’s Story

Secretary of War Pete Hegseth, in his speech to 800 assembled generals, admirals and senior enlisted at Quantico, Va., on Sept. 30, 2025, quoted Eugene Sledge from his timeless classic With The Old Breed published in 1981.

Interests



Get the best of American Rifleman delivered to your inbox.