best 45 acp suppressorbest 45 acp suppressor

The Best .45 ACP Suppressor

We often recommend a 45 ACP suppressor even for customers who are planning to suppress mostly 9mm pistols, because they’re just so versatile!


With so many great options on the market, we’ve put together this Top 5 Best 45 ACP Suppressors list to help you narrow it down based on our experience combined with thousands of customer reviews. If you want to discuss further, don’t hesitate to reach out to the experts at Silencer Shop any time!

Top 5 Best 45 ACP Silencers



Rugged Obsidian 45

Dead Air Ghost 45M

SilencerCo Osprey 45 2.0

SilencerCo Omega 45K


RAD 45


Long: 8.6”

Short: 6.7”

Long: 8.75”

Short: 6.2”



Long: 8.6”

Short: 6.4”


Long: 12.8 oz
Short:10.7 oz

Long: 12 oz

Short: 9.6 oz

11.1 oz

10.7 oz

Long: 10.3 oz

Short: 7.6 oz







Build Materials

Stainless Steel; Aluminum

Stainless Steel, Titanium, Aluminum

Stainless Steel; Aluminum

Stainless Steel, Stellite

Stainless Steel, Titanium, Aluminum













Caliber Rating

.300BLK (Subsonic), 10mm, .45ACP, .350 Legend, .450 Bushmaster

22 LR, .300BLK (subsonic), 9mm, .40SW, 10mm, .45 ACP

.300BLK (subsonic), 9mm, .40 SW, .45 ACP

.300BLK (subsonic), 9mm, .40 SW, .45 ACP

.300BLK(Subsonic), 9mm,.40 SW, 45ACP


Thread Pitch 

Booster Assembly,
.578×28 Piston

Booster Assembly

Booster Assembly

Booster Assembly, 5/8x24 thread mount

Booster Assembly, 
.578 x 28 Piston

Full Auto Rated

Belt Fed Rated





1. Rugged Obsidian 45

45 acp suppressor, Rugged Obsidian 45, suppressed 191145 acp suppressor, Rugged Obsidian 45, suppressed 1911

The Rugged Obsidian 45 is this year's best suppressor for 45.


It is a great pistol silencer for 9mm, 10mm, 40 S&W, 45 ACP, and more, but also can suppress larger rifle calibers like 450 Bushmaster, 458 SOCOM, .45 Colt, and .45-70 Gov’t. It’s one of the quietest 45 ACP suppressors on the market, and it still sounds great on your favorite 9mm weapons. Plus that large bore diameter and stout design provide a ton of versatility!


Thanks to its 17-4 stainless steel construction, the Obsidian45 is belt-fed rated on pistol calibers up to 45 ACP and can also handle rifle calibers such as 300 BLK, 9x39, 350 Legend, .45-70 Gov’t, and more with relevant barrel length restrictions. This durability and caliber range makes the Obsidian 45 one of the most versatile 45 suppressors available. 


The Obsidians modularity allows you to quickly and easily transform the Rugged Obsidian 45 from a full length of 8.6 inches down to a very compact 6.7 inches. This allows the Obsidian 45 to transform from an ideal pistol suppressor to a great carbine suppressor, or to match your size and weight requirements with your intended use and preferences.



  • Top performer
  • Modular
  • Highly versatile

Durable, modular design allows it to suppress pistols, PCCs, and even rifles of varying calibers up to .45-70 Gov’t. Plus, it sounds and looks great.

2. Dead Air Ghost 45M

45acp suppresor, Dead Air Ghost 45M45acp suppresor, Dead Air Ghost 45M

One of our most popular 45 ACP silencers, the Dead Air Ghost 45M sounds amazing and offers a lot of flexibility and configurability.


The Dead Air Ghost is one of best 45 suppressors for pistols and rifles, It’s a modular suppressor designed for use across many platforms. 


In its short configuration, the Ghost 45M is the shortest .45 caliber suppressor in its class and is surprisingly quiet given its compact size. In its full configuration, the Ghost 45M is one of the quietest 45 acp suppressors, the Ghost delivers industry-leading sound suppression performance. A rubber wipe-compatible front cap offers even more performance potential!


Built from 17-4 stainless steel, titanium, and 7075 aluminum, Dead Air balances durability and weight savings by putting the correct material in the correct place.


The Ghost 45M ships with a booster assembly, but pistons in your desired thread sizes are sold separately to ensure you get the correct thread pitch for your firearm! Direct thread mounts and 3-Lug mounts are also available to increase the versatility.



  • Super quiet
  • Modular
  • Lightweight

Pistols, subguns, and lever guns, including full-auto use on pistol calibers. 300 Blackout subsonic rated.

3. SilencerCo Osprey 45 2.0

45 suppressor, Griffin Revolution 4545 suppressor, Griffin Revolution 45

One of the coolest, most iconic pistol suppressors on the market, the SilencerCo Osprey 45 is designed with a unique, polygonal shape that drops most of its body down below the bore of the barrel.


Not only does this look great on a pistol, it lowers the top of the silencer so it doesn’t impede your sight picture even with standard height pistol sights.


Because of its offset design, the Osprey 45 has to be oriented correctly on your host pistol after it’s tightened onto the barrel. SilencerCo’s push-button locking system makes this quick and repeatable! The added volume of this unique design also makes this one of the quietest 45 suppressors. 


Rated for use on 9mm, 40 S&W, 10mm, and 45 ACP pistols as well as on 300 Blackout carbines and rifles. Compatible with both pistons and fixed barrel spacers to match the operation of your host firearm.



  • Unique shape looks really cool
  • Sounds great
  • Works with standard height pistol sights

Instagram influencers, and anyone else who wants a really cool looking, great sounding pistol suppressor for anything .45 cal and smaller.

4. SilencerCo Omega 45K

Best 45 suppressor, SilencerCo Omega 45K, suppressed 1911Best 45 suppressor, SilencerCo Omega 45K, suppressed 1911

The SilencerCo Omega 45K is a unique suppressor that carved out a niche in the market when it was released.


This compact, lightweight 45 caliber suppressor is made of fully-welded Cobalt 6 and 17-4 stainless steel, making it extremely tough and durable. It’s rated not only for full-auto use on 9mm, 10mm, and 45 ACP, but also for use on both subsonic and supersonic 300 Blackout.


Compatible with SilencerCo Alpha series mounts, the Omega 45K ships with a 5/8x24 fixed mount (for 300 BLK firearms), a booster assembly minus the piston (pick up pistons separately in the thread pitches you require), and a 3-Lug tool should you grab a 3-Lug QD mount for use on MP5s and other submachine guns.


This is a great suppressor for keeping your firearms compact and lightweight, ideal for pistols, PDWs, and subguns, plus for 300 Blackout use.



  • Durable for hard use
  • Very compact
  • Swappable mounts

Achieving hearing safe sound levels with a minimum in added length or weight, yet the durability for full-auto and 300 BLK use.


Designed to dramatically reduce or eliminate gas blowback, the HUXWRX RAD 45 is the best 45 cal suppressor for low back pressure. The RAD 45  features Flow Through ™ Baffle technology, which directs expanding gas away from the bore and then routes it forward through the suppressor and away from your face.


Lightweight, modular, and durable, it’s a great choice for pistols, carbines, and lever guns. The RAD 45 is full-auto rated for 300 Blackout subsonic as well as for most pistol calibers including 9mm, 10mm, 40 S&W, 45 ACP, 357 Mag, 44 Mag, and more. It’s also rated for use on 22 LR, 17 HMR, 5.7x28, 350 Legend, 45-70 Gov’t, and others with some barrel length restrictions on the rifle calibers.


The HUXWRX RAD 45 ships with a .578x28 booster assembly, the most common 45 acp suppressor thread pitch. Other mounts such as 3-Lug and direct thread are also available.



  • Flow-Baffle design for reduced blowback
  • Highly versatile
  • Modular & lightweight

Just about everything. The Flow Through™  design noticeably reduces blowback, and though it's modular and lightweight, it’s rated for lots of calibers and hard use.

Honorable Mention

SilencerCo Octane 45

A classic, straightforward pistol suppressor at a good price, the SilencerCo Octane 45 continues to deliver solid performance across the board. With a user-serviceable baffle stack, the Octane 45 is compatible with lead projectiles, 22 LR, and other “dirty” cartridges. Though it’s lightweight, the Octane 45 is still rated for use on subsonic 300 Blackout as well as full-auto rated for 45 ACP and 9mm. It’s also great on 10mm, 40 S&W, and other pistol cartridges .45 caliber and smaller.


The Octane 45 ships with a booster assembly (piston retainer and piston spring), but pistons in your desired thread sizes are sold separately so don’t forget to pick one up! Compatible with SilencerCo Alpha accessories, direct thread fixed mounts and 3-Lug mounts are also available.


A good 45 ACP pistol suppressor provides a ton of versatility and bang-for-your-buck! We’ve selected five of our favorites based on experience and customer reviews, which should help simplify your decision. If you need a hand in determining which one is right for you, give us a call (512-931-4556), or email, we're happy to assist!