Promag FN FNX-45 45ACP 20 Round Magazine


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Promag FN FNX-45 45ACP 20 Round Magazine
This is the Promag FN FNX-45 45ACP 20 Round Magazine. This FN FNX-45 steel magazine, manufactured by Promag Industries, holds up to 20 rounds of .45 ACP ammunition.

This Promag FNX-45 extended magazine has a steel construction with a grip extension, providing comfort and steadiness at the range. Also, it offers an anti-tilt polymer follower, steel feedlips, and a precision-wound steel spring for consistent and reliable feeding into your FN FNX-45.

Promag prides itself on making their products in the USA, where each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality.

Pick up a few of these Promag FNX-45 45ACP 20 Round Magazine from the Mag Shack!



More Information about the FN FNX-45 Handgun

The FNX™-45 is the result of years of innovative product development and advanced engineering techniques. Modeled after the FNP™-45 service pistol introduced in 2007 under the U.S. Joint Combat Pistol Program, the FNX™-45 is a double-action/single-action hammer-driven pistol with highly enhanced ergonomics. Its manual safety/decocking levers, slide stop lever, and magazine release are all fully ambidextrous for ease of operation with either hand and from any firing position. Both the slide and barrel are stainless steel. The FNX™-45’s checkered polymer frame has multiple interchangeable backstraps with lanyard eyelets. A MIL-STD-1913 mounting rail on the underside accepts tactical lights and lasers.

Weight 6 oz





Customer Reviews

Based on 72 reviews
Troy E.
FNX-45. Mags

Shipped very quick. High quality product I would definitely buy again.

Nicolas M.
FNX beast mode!

Nothing like having close to half a box of .45 acp loaded in already a beast of a pistol. The rounds do audibly shift around in the mag a little when full, but i have glock mags that do that too, so what ya gonna do? Overall, great construction, and ran great at the range. No feeding issues. Currently have one loaded with defense rounds for the house.

David B.

Nice mags for half the price ...👍

Slope s.
Factory quality

20 rounds of the lords caliber what more could you ask for .. Fit and finish same as factory.. fits perfectly good quality.. takes my fnx45 from tactical to tacticool ...

W B.
ProMag 20 round FN FNX-45 Tactical mag

It's a ProMag product and it works and fits the pistol.