FN FNX 45 Tactical for sale
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FN America FNX-45 Tactical .45 ACP Consumer Pistol, Blk - 66981
Brand:
FNH
Action:
Single Action
Barrel Length:
5.3
Caliber:
.45 ACP
Capacity:
10
Finish Per Color:
Black
(20)
FN FNX-45 Tactical .45 ACP Pistol 5.3", Black - 66966
Brand:
FNH
Action:
Double Action/Single Action
Barrel Length:
5.3
Caliber:
.45 ACP
Capacity:
15
Finish Per Color:
Black
From:
$57.29
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13
(20)
FN FNX-45 Tactical 45 ACP 5.3" Threaded Barrel Flat Dark Earth, Night Sights, 15 Round
Brand:
FN America
Action:
Double Action/Single Action
Barrel Length:
5.3
Caliber:
.45 ACP
Capacity:
15
Finish Per Color:
Flat Dark Earth
From:
$57.29
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13
(0)
FN America FNX-45 Tactical Handgun With 5 Magazines 45 ACP - 5.3" - Flat Dark Earth - 10rd
Brand:
FN America
Action:
Double Action/Single Action
Barrel Length:
5.3"
Caliber:
.45 ACP
Capacity:
10
Finish Per Color:
Flat Dark Earth
(6)
FN FNX-45 Tactical .45 ACP Pistol With Vortex Viper, FDE - 66-100866
Brand:
FNH
Action:
Double Action/Single Action
Barrel Length:
5.3
Caliber:
.45 ACP
Capacity:
15+1
Finish Per Color:
Flat Dark Earth
(14)
FN America FNX-45 Tactical .45 ACP Consumer Pistol, FDE - 66982
Brand:
FNH
Action:
Single Action
Barrel Length:
5.3
Caliber:
.45 ACP
Capacity:
10
Finish Per Color:
Flat Dark Earth
(0)
FN FNX-45 Tactical Black / Flat Dark Earth .45 ACP 5.3-inch 15Rds
Brand:
FNH
Action:
Double Action/Single Action
Barrel Length:
5.3"
Caliber:
.45 ACP
Capacity:
15
Finish Per Color:
Black / Flat Dark Earth
(0)
FN FNX-45 Tactical .45 ACP 5.3" Barrel 10-Rounds Threaded Barrel
Brand:
FN America
Action:
Pistol
Barrel Length:
5.3in
Caliber:
.45 ACP
Capacity:
10+1
Finish Per Color:
Matte
From:
$57.29
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10
(12)
FN FNX Tactical Flat Dark Earth .45 ACP 5.3" Barrel 10-Rounds Vortex Viper Sight
Brand:
FN America
Action:
Pistol
Barrel Length:
5.3in
Caliber:
.45 ACP
Capacity:
10+1
Finish Per Color:
Flat Dark Earth
From:
$57.29
View Product
10
(1)
FN FNX-45 Tactical Flat Dark Earth .45 ACP 4.5" Barrel 10-Rounds Vortex Viper Optic
Action:
Pistol
Barrel Length:
5.3in
Caliber:
.45 ACP
Capacity:
10+1
(3)
FN FNX-45 Tactical Pistol w/ Vortex Venom Optic, FDE - 66-100659
Brand:
FNH
Action:
Pistol
Barrel Length:
5.3in
Caliber:
.45 ACP
Capacity:
15+1
(4)
FN FNX-45 Tactical Pistol w/ Vortex Venom Optic, Black - 66-100657
Brand:
FNH
Action:
Pistol
Barrel Length:
5.3in
Caliber:
.45 ACP
Capacity:
15+1
(0)
FN FNX-45 Tactical Combo .45 ACP Pistol with Vortex Venom Red Dot - 66100658
Brand:
FNH
Action:
Double Action/Single Action
Barrel Length:
5.3"
Caliber:
.45 ACP
Capacity:
10+1
(0)
FN FNX-45 Tactical 10 Round .45 ACP Pistol With Vortex Venom, FDE - 66100660
Brand:
FNH
Action:
Double Action/Single Action
Barrel Length:
5.3"
Caliber:
.45 ACP
Capacity:
10
Marketplace Insights
★ 4.8/5
based on 80 customer reviews across 14 variants from 30 retailers
The FNX-45 Tactical is a highly reliable, accurate full-size combat pistol with excellent suppressor compatibility and high capacity, though it's large for everyday carry.
What customers like
Reliability & Accuracy51%
No jams, misfires, failures to eject, or any other issues after 1200+ rounds.
Suppressor Host28%
Runs like a sewing machine with a can.
High Capacity23%
15 rounds of .45!!! Easily replaced my M17 as my bedside gun.
Ambidextrous Controls19%
I'm a lefty and this gun is totally ambidextrous.
Value for Price16%
Got at a great price.
Common concerns
Magazine Issues5%
Mag springs are weak, and follower is sticky and does not slide smoothly
Slide Release Stiffness3%
I have torn the skin off the tip of my thumb trying to use the slide release
Optic Mounting Conflict5%
The optic sits against the rear sight and the screws cannot be accessed to lock it in.
Frequently Asked Questions
FN FNX 45 Tactical for sale
Is the FNX-45 Tactical worth the money?
Value depends on your priorities. At around $1,379 MSRP, it offers 15+1 capacity, DA/SA trigger, suppressor-ready barrel, and reliable performance in a full-size .45 ACP. Drawbacks include limited aftermarket support and expensive parts. A solid choice if you want high-capacity .45 ACP with a traditional trigger system.
What is the compensator for the FN FNX 45 tactical?
FN doesn't factory-install a compensator on the FNX-45 Tactical, but FN offers an official FN Compensator Accessory Kit designed specifically for it. This kit uses a quick-detach design for toolless install and removal on a proprietary non-threaded QD barrel. Aftermarket threaded compensators are not the only option.
Does the military use the FNX 45?
No confirmed widespread military adoption exists. FN designed the FNX-45 Tactical with military trial requirements in mind, but available sources don't document active U.S. military issuance. Some law enforcement agencies use it, but it remains primarily a civilian and law enforcement option.
What are the common problems with the FNX 45?
Reported issues include magazine spring wear, slide lock failures after the final round, occasional stovepipes, and failures to lock back. Underpowered ammunition causes feeding problems in some guns. The large grip challenges shooters with smaller hands, and parts availability has frustrated some owners.
What footprint does the FNX 45 Tactical have?
The FNX-45 Tactical uses FN's proprietary optics mounting system. It does not natively accept standard footprints like the Docter/Noblex pattern, but aftermarket adapter plates allow mounting of various red-dot sights with different footprints onto the slide's milled cut.
Is the FNX 45 optic ready?
Yes. The FNX-45 Tactical has a milled slide with two included mounting bases that accept multiple red-dot styles. Some variants, such as the FDE version, bundle a Vortex Viper red dot, but the standard black model is optic ready without an included optic. Aftermarket adapter plates expand compatibility further.
What red dot fits FNX-45 tactical?
The FNX-45 Tactical includes two mounting plates compatible with several red dots. Popular fits include the Trijicon RMR, Trijicon SRO, Leupold DeltaPoint Pro, Vortex Venom, Sig Romeo 3 XL, Holosun 507C, Holosun 508T, and Aimpoint ACRO P-2. The pistol ships with an RMR mounting plate. Aftermarket plates expand compatibility further.
What is the FNX-45 known for?
The FNX-45 Tactical is known for its 15-round .45 ACP capacity, ambidextrous controls, low-bore-axis polymer frame, threaded barrel for suppressors, and optics-ready slide with night sights. Its DA/SA action makes it popular with military, law enforcement, and civilian users.