CAT Suppressor Buying Guide
Every current Combat Application Technologies (CAT) suppressor we carry, from the SR rimfire can to the ST, ODB, JL and BBK rifle cans: what caliber and host each one is built for, titanium vs. Inconel, HUB vs. 1x16LH QD mounts, and what PEW Science and the Silencer Summit measured.
How to Choose a CAT Suppressor
Combat Application Technologies (CAT) builds caliber-specific suppressors. Most models are tuned for one cartridge, a velocity range and a reference host, like a 14 in. M4, a 16 in. AK-47 or a 20 in. M110A2. That's why the lineup has so many models: you pick the one built for your rifle. Every CAT suppressor core is 3D printed in metal, CAT designs and builds in the U.S., and every CAT suppressor carries a lifetime warranty against defects in materials and workmanship.
Pick your caliber and host first, then the material and mount:
- 5.56, any barrel length: the ST. For a short 5.56, the KK or WB. For a pinned and welded 14.5 in. carbine, the TSWIF.
- 6mm ARC: the NOAH, or the VB6 reflex suppressor for SPR and DMR builds.
- 7.62x39 and AK: the ODB.
- .30 cal all-rounder, 7.62 NATO to .300 Win Mag: the AKB.
- Short 7.62 NATO: the DD. .308 precision: the JL.
- 300 BLK SBR: the RAT, built for the SIG Rattler.
- 6.5 Grendel to 6.5 PRC: the CM. .338 Lapua, 338 ARC and 8.6 BLK: the BBK.
- 9mm pistol: the SC (two lengths) or SC-S (compact). 9mm PCC and subgun: the MOB. .45 ACP pistol: the SP.
- Rimfire: the SR or the shorter BEN.
- Shotgun: the CT 12 gauge.
Then choose titanium or Inconel, and a HUB or QD rear. The next two sections explain both.
Which CAT Suppressor Should You Buy?
5.56, any barrel length
ST
Built to run on every common 5.56 barrel length without tuning. 9 oz in TI-C, 17.5 oz in Inconel, rated up to 6mm ARC.
Short 5.56
KK
CAT's shortest 5.56 suppressor: 4.5 in. of Inconel 718, with an AI Nano QD muzzle device in the box.
Pinned and welded 14.5 in.
TSWIF
The suppressor tube doubles as the muzzle device housing. 5 in. combined with the Lil Bomb blast diverter.
.30 cal all-rounder
AKB
7.62 NATO up to .300 Win Mag on DI, piston and bolt guns. 6.04 in. and 9.1 oz in TI-C.
300 BLK SBR
RAT
Modular QD suppressor built for the 5.5 in. SIG Rattler, with Covert and Efflux extensions.
.338 and 8.6 BLK
BBK
Subsonic 338 ARC and 8.6 BLK, plus supersonic .338 Lapua on a 20 in. or longer barrel.
9mm PCC or subgun
MOB
Built for 9mm SMGs and PCCs like the B&T APC9, with no barrel length restrictions.
Titanium, TI-C or Inconel 718?
Many CAT rifle suppressors come in two materials with the same outside dimensions. The choice comes down to weight vs. heat and barrel length.
- Titanium and TI-C: about half the weight. TI-C is CAT's heat-treated titanium, with a service temperature of about 968°F compared with about 650°F for standard titanium, so it tolerates more heat and higher rates of fire than standard titanium. Pick it for hunting rifles, precision rifles and anything you carry.
- Inconel 718: heavier, and built for heat. It allows shorter barrels (for example, 8 in. on 5.56 for the WB, NOAH and ODB, vs. 10 in. in titanium) and handles aggressive firing schedules. Pick it for SBRs and high-volume shooting.
Example: the ST is 9 oz in TI-C and 17.5 oz in Inconel, with an 11.5 in. vs. 10.3 in. minimum barrel.
CAT Mount Systems: HUB, 1x16LH QD and Pistons
Most CAT rifle suppressors come in two versions: a 1.375x24 HUB rear or a 1x16LH quick-detach rear. The only difference is the built-in QD feature; the QD version is a little longer and heavier. Pistol cans use boosters, and rimfire cans thread on directly.
| Mount | How it works | Used on | Also fits |
|---|---|---|---|
| 1.375x24 HUB | Industry-standard rear thread that takes a direct thread mount or a QD adapter | ST, WB, NOAH, ODB, AKB, DD, JL, CM, BBK, MOB, CT | HUB mounts from SilencerCo, Dead Air, Q and others |
| 1x16LH QD | Threads onto a 1x16 left-hand QD muzzle device, like the Spooky 1 flash hider or AI Nano | QD versions of the ST, WB, NOAH, ODB, AKB, DD, JL and MOB; KK, VB6 and RAT | Other 1x16LH devices, like the Noveske Pig Pen |
| Integrated blast diverter | The suppressor tube threads into its own 1/2x28 blast diverter | TSWIF | The TSWIF core only |
| Booster piston | Booster assembly for tilting-barrel pistols | SC and SC-S (1/2x28), SP (.578x28) | Standard threaded pistol barrels |
| Direct thread | Threads straight onto the barrel | SR and BEN (1/2x28) | 1/2x28 rimfire hosts |
HUB versions
The HUB rear takes any 1.375x24 mount, so you can run the direct thread or QD system you already own, like the SilencerCo Bravo ASR Mount, Dead Air Key-Mo Adapter, Dead Air Xeno Adapter or Q Plan-B. CAT's TSFX adapter turns a HUB version into a 1x16LH QD version.
1x16LH QD versions
CAT made its 1x16LH QD thread open source, so other makers build compatible devices. Most CAT QD versions ship with the Spooky 1 flash hider. The KK, VB6 and RAT use the shorter AI Nano, and the KK works only with AI Nano devices. Because of the blast baffle depth, use compact muzzle devices on QD versions; some full-size devices won't fit.
Browse rifle mounts, muzzle devices and pistons and pistol mounts.
CAT 5.56 and 6mm Suppressors: ST, WB, KK, TSWIF, NOAH and VB6
CAT's 5.56 lineup covers every host length, from an SBR to a full-length rifle, and two models are built for 6mm ARC. Shop all 5.56 suppressors.
CAT ST
The ST (Super Thug) is CAT's first generic 5.56 suppressor, built to run across all common 5.56 barrel lengths without platform-specific tuning. It builds on the WB, and the added length makes room for CAT's SBX internals.
Caliber: 5.56, up to 6mm ARC | Length: 6 in. HUB; 6.4 in. QD | Weight: 9 oz TI-C, 17.5 oz Inconel (HUB) | Diameter: 1.6 in. | Min. barrel: 11.5 in. TI-C; 10.3 in. Inconel | Mount: HUB or 1x16LH QD | Finish: PVD
It's tuned around a 14.5 in. AR-15 and addresses sound, flash, blast, toxic fume and durability. The Inconel version drives flash close to zero.
What reviewers found
PEW Science: Tested the Inconel QD version on a 14.5 in. M4A1 (SSS.6.217) and found it "produces the highest levels of pure 5.56 NATO suppression performance tested." Bystander protection was higher than all other tested systems by a significant margin.
CAT WB
The WB (White Bread) is tuned for supersonic 5.56 on a 14 in. M4. It's short, at 5.45 in. on a HUB rear, and built in Inconel 718 for 8 in. barrels and up.
Caliber: 5.56 NATO | Length: 5.45 in. HUB; 5.8 in. QD | Weight: 14.6 oz HUB; 16.1 oz QD (Inconel) | Diameter: 1.6 in. | Min. barrel: 8 in. | Mount: HUB or 1x16LH QD | Finish: DLC
It uses CAT's Surge Bypass internals and is built for 5.56 only, not 6mm ARC. For one can across every 5.56 barrel length, look at the ST. We also carry the limited RDM WB, an Inconel WB with thicker walls for more heat capacity (17.6 oz), from a run CAT won't repeat.
What reviewers found
PEW Science: On a 10.3 in. MK18 (SSS.6.129), the WB "outperforms most silencers tested on the MK18 by PEW Science, to date." On a 14.5 in. M4A1 (SSS.6.130), it was "significantly outperforming the Surefire SOCOM556-RC2."
CAT KK
The KK (Kitty Kat) is CAT's shortest 5.56 suppressor: a 4.5 in. Inconel 718 core, 4.75 in. with its AI Nano mount. It's built for short, fast-handling rifles like the MK18 and SBR AR-15s.
Caliber: 5.56 NATO | Length: 4.5 in. | Weight: 14.5 oz | Diameter: 1.6 in. | Min. barrel: 10 in. | Material: Inconel 718 | Mount: AI Nano 1x16LH QD (1/2x28 device included)
It works only with AI Nano muzzle devices; the Spooky and other longer devices don't fit.
What reviewers found
PEW Science: Tested it on a 10.3 in. MK18 (SSS.6.197), called its performance "unprecedented for its size" and ranked it #7 for operator protection on that host.
CAT TSWIF
The TSWIF is a compact 5.56 suppressor for hard-use carbines. The suppressor tube threads into its own Lil Bomb blast diverter, so the internal volume goes to suppression instead of a separate muzzle device.
Caliber: 5.56 NATO | Length: 5 in. combined; 2.7 in. blast diverter | Weight: 16.6 oz combined; 6.7 oz blast diverter | Diameter: 1.7 in. core | Material: Inconel | Mount: 1/2x28 Lil Bomb blast diverter (included)
The Lil Bomb comes ready to pin and weld on a 14.5 in. barrel. We also carry the limited KX3 TSWIF, built to install into Noveske KX3 muzzle devices (4.7 in., 13.3 oz).
What reviewers found
PEW Science: Tested it with the Lil Bomb on a 14.5 in. M4A1 (SSS.6.193) and found it "significantly exceeds the performance of the MCQ-PRT," with minimal back pressure.
CAT NOAH
The NOAH is tuned for 6mm ARC on a 14.5 in. barrel, and it's also rated for 5.56. If you shoot both calibers, one NOAH covers them.
Caliber: 6mm ARC and 5.56 | Length: 6.15 in. HUB; 6.5 in. QD | Weight: 8.6 oz titanium, 17.5 oz Inconel (HUB) | Diameter: 1.6 in. | Min. barrel: 10 in. titanium; 8 in. Inconel (5.56) | Mount: HUB or 1x16LH QD | Finish: DLC
The titanium version suits predator hunting and precision rifles; Inconel suits short barrels and high round counts.
CAT VB6
The VB6 (Viking Bro 6) is a reflex suppressor for 6mm ARC and 5.56 SPR and DMR builds. Part of the suppressor sits back over the barrel, so it adds only 4.26 in. of length and keeps the rifle's balance closer to you.
Caliber: 6mm ARC and 5.56 | Length: 7.88 in. overall; 4.26 in. added | Weight: 13.5 oz | Diameter: 1.75 in. | Min. barrel: 14.5 in. | Material: TI-C | Mount: AI Nano 1x16LH QD (5/8x24 device included)
Your barrel needs at least 3 in. of clearance from the muzzle crown to the front of the handguard or gas block, and a barrel diameter of .98 in. or less under the reflex section.
CAT .30 Cal Suppressors: ODB, AKB, DD, JL and RAT
CAT builds a separate .30 cal suppressor for each job: AK, general-purpose .30 cal, short 7.62 NATO, .308 precision and 300 BLK SBR. Shop all .30 cal suppressors.
CAT ODB
The ODB is tuned for 7.62x39 on a 16 in. AK-47, and it also runs 5.56, 300 BLK and up to 7.62 NATO. It's built around the AK.
Caliber: 7.62x39 (max 7.62 NATO); 5.56; 300 BLK | Length: 6.85 in. HUB; 7.2 in. QD | Weight: 9.9 oz titanium, 18.2 oz Inconel (HUB) | Diameter: 1.6 in. | Min. barrel: 10 in. titanium; 8 in. Inconel (5.56) | Mount: HUB or 1x16LH QD | Finish: DLC
What reviewers found
PEW Science: On a 5.56 MK18 (SSS.6.120), the Inconel ODB's performance "eclipses that of every 30 caliber silencer evaluated to date, including the HUXWRX FLOW 762 Ti, and most 5.56mm silencers," with low back pressure. On an 8 in. subsonic 300 BLK (SSS.6.122), it "meets or exceeds the performance of the Surefire SOCOM300-SPS."
CAT AKB
The AKB is CAT's general-purpose .30 cal suppressor. It's built to run 7.62 NATO up to .300 Win Mag on DI, piston, bolt action and modern gas guns, and it's not an AK-specific can like the ODB.
Caliber: 7.62 NATO, max .300 Win Mag | Length: 6.04 in. HUB; 6.4 in. QD | Weight: 9.1 oz TI-C, 17.5 oz Inconel (HUB) | Diameter: 1.6 in. | Min. barrel: 7.62: 16 in. TI-C, 13 in. Inconel; 300 BLK: 8 in. TI-C, 5.5 in. Inconel | Mount: HUB or 1x16LH QD | Finish: PVD
It's tuned around a 16 in. SR-25 and uses CAT's SBX internals.
What reviewers found
PEW Science: Tested the Inconel HUB version on a 14.5 in. SR-25 (SSS.6.218) and found it will "surpass the overall signature reduction performance of the Rampart Range and Dillon silencers" tested, and will outperform the longer CAT ODB on short-barrel 7.62 NATO.
CAT DD
The DD (Dirty Dave) is a compact 7.62 NATO suppressor for assault and recce rifles with 13 in. and longer barrels. It's tuned around the 13 in. SIG MCX-Spear, and it's built for low toxic fume and low blast.
Caliber: 7.62 NATO | Length: 5.75 in. HUB; 6.1 in. QD | Weight: 9 oz titanium, 16.6 oz Inconel (HUB) | Diameter: 1.6 in. | Min. barrel: 16 in. titanium; 13 in. Inconel | Mount: HUB or 1x16LH QD (Spooky 1 included on QD) | Finish: DLC
What reviewers found
PEW Science: Tested the Inconel QD version on a 20 in. .308 (SSS.6.159) and called it "one of the most consistent compact 30-caliber rifle silencers evaluated."
CAT JL
The JL is a .308 precision suppressor tuned around the 20 in. M110A2, with mid-level back pressure and minimal point-of-impact shift. It's also built for 300 BLK subguns.
Caliber: 7.62 NATO; 300 BLK | Length: 8.2 in. HUB; 8.55 in. QD | Weight: 13.2 oz HUB; 14 oz QD | Diameter: 1.75 in. | Min. barrel: 16 in. | Material: Titanium | Mount: HUB or 1x16LH QD (Spooky 1 included on QD)
What reviewers found
PEW Science: On a 20 in. .308 bolt gun (SSS.6.147), the JL delivered "the most advanced hazard reduction to the weapon operator on this platform of any system tested," ahead of the CGS Hyperion and Dead Air Nomad-L, among others.
2025 Silencer Summit: The JL read 134.3 dBA on the MIL-STD microphones on a 20 in. .308 bolt gun, 8th lowest of the 70 suppressor setups on that host, and 120.4 dBA on a 300 BLK bolt gun, 10th lowest of 85. Thunder Beast Arms hosted and scored this test. See the results
CAT RAT
The RAT is a modular 300 BLK suppressor built to fix suppressed reliability on the 5.5 in. SIG Rattler, and it works on other 300 BLK hosts too. A short base unit takes either extension, so you get a compact setup or a full-length one on one tax stamp.
Caliber: 300 BLK, subsonic and supersonic | Length: 4.04 in. base; +3.3 in. Covert or +3.49 in. Efflux | Weight: 7.1 oz base; +5.7 oz Covert or +6.4 oz Efflux | Diameter: 1.7 in. | Min. barrel: 5.5 in. | Material: TI-C | Mount: 1x16LH QD with AI Nano 5/8x24 devices
Choose the Covert extension for the most suppression, the Efflux extension for supersonic ammo and higher rates of fire, or the Three Legged Cat kit with both.
CAT 6.5mm and .338 Suppressors: CM and BBK
Both are bored for their caliber instead of borrowing a .30 cal can, which keeps more gas inside the suppressor. Shop all .338 and large bore suppressors.
CAT CM
The CM is bored for .264 and built for the whole 6.5 family, from 6.5 Grendel through 6.5 Creedmoor to 6.5 PRC. The tighter bore lowers the report and keeps unburnt powder inside the can, which cuts flash.
Caliber: 6.5 Grendel to 6.5 PRC | Length: 8.2 in. | Weight: 11.4 oz | Diameter: 1.75 in. | Min. barrel: 14 in. (6.5 Creedmoor) | Material: TI-C | Mount: HUB | Finish: PVD
It's tuned around a 6.5 Creedmoor bolt gun. CAT made only 300 of them.
CAT BBK
The BBK covers two jobs: subsonic 338 ARC and 8.6 BLK on short barrels, and supersonic .338 Lapua Magnum on precision rifles.
Caliber: .338 (8.6mm): 338 ARC, 8.6 BLK, .338 Lapua | Length: 9.5 in. | Weight: 15.5 oz | Diameter: 1.8 in. | Min. barrel: 8 in. (338 ARC); 20 in. (magnum) | Material: Titanium | Mount: HUB
What reviewers found
2025 Silencer Summit: The BBK read 133.5 dBA on a 20 in. .308 bolt gun, 3rd lowest of 70 setups; 136.3 dBA on .300 Win Mag, 4th lowest of 68; and 120.1 dBA on a 300 BLK bolt gun, 5th lowest of 85. Thunder Beast Arms hosted and scored this test. See the results
CAT Pistol and PCC Suppressors: SC, SC-S, MOB and SP
The SC, SC-S and SP are built for tilting-barrel handguns and ship with a booster. The MOB is built for 9mm subguns and carbines. Shop all pistol suppressors.
CAT SC
The SC is a two-piece modular 9mm pistol suppressor. Run it short at 5.5 in. for a compact setup or long at 7.5 in. for the most suppression.
Caliber: 9mm | Length: 5.5 in. short; 7.5 in. long | Weight: 7.5 oz short; 9.5 oz long | Diameter: 1.4 in. | Material: Titanium | Mount: 1/2x28 booster piston (included) | Finish: DLC
It's tuned around a Glock 19 and has no barrel length restrictions.
What reviewers found
PEW Science: Tested both lengths on an HK P30L (SSS.6.162) and called it "the most significant advancement in centerfire 9mm pistol suppression in recent history." In the short setup, it gave "the highest level of operator protection" of any pistol silencer PEW Science had evaluated.
CAT SC-S
The SC-S is the one-piece version of the SC's short setup: 5.5 in. and 7.5 oz of titanium. It's for shooters who ran the SC short and didn't need the extension.
Caliber: 9mm | Length: 5.5 in. | Weight: 7.5 oz | Diameter: 1.4 in. | Material: Titanium | Mount: 1/2x28 booster (included) | Finish: DLC
It's built for 9mm handguns and PCCs, tuned around a Glock 19, with no barrel length restrictions.
CAT MOB
The MOB is built for 9mm subguns and pistol caliber carbines, subsonic and supersonic, and covers 8.6mm through 9mm. For a handgun, pick the SC or SC-S instead.
Caliber: 9mm (8.6mm to 9mm) | Length: 7.39 in. HUB; 7.74 in. QD | Weight: 9.9 oz HUB; 10.7 oz QD | Diameter: 1.65 in. | Min. barrel: None | Material: Titanium | Mount: HUB or 1x16LH QD (Spooky 1 included on QD)
It's tuned around the B&T APC9 and uses CAT's DiVerge internals.
What reviewers found
PEW Science: Tested it on an 8.9 in. HK SP5 (SSS.6.148) and called it "the most advanced submachine gun suppression performance evaluated by the PEW Science laboratory, to date."
CAT SP
The SP (Saigon Peacekeeper) is a modular .45 ACP pistol suppressor for tilting-barrel handguns. Run it short at 6.1 in. or long at 8 in.
Caliber: .45 ACP; max 300 BLK subsonic | Length: 6.1 in. short; 8 in. long | Weight: 9.3 oz short; 11.7 oz long | Diameter: 1.47 in. | Material: Titanium | Mount: .578x28 booster piston (included) | Finish: DLC
CAT Rimfire Suppressors: SR and BEN
Both are one-piece titanium .22 LR suppressors that thread onto 1/2x28. Shop all rimfire suppressors.
CAT SR
The SR is a one-piece titanium .22 LR suppressor, 3.3 oz and 5.65 in. The current SR (A2) replaces both the original SR (A1) and the Alleycat 22.
Caliber: .22 LR | Length: 5.65 in. | Weight: 3.3 oz | Diameter: 1.05 in. | Min. barrel: None | Material: Titanium | Mount: 1/2x28 direct thread
It's built for .22 LR only and isn't compatible with 5.7x28.
What reviewers found
PEW Science: Tested the original SR (A1) on a 16 in. CZ 452 (SSS.6.140) and found it "produces the least severe sound signature on rimfire host weapon platforms of any rimfire silencer tested." On a Beretta 21A pistol (SSS.6.141), it was "the quietest overall suppressed rimfire pistol configuration tested."
CAT BEN
The BEN is CAT's shortest rimfire suppressor: 4.3 in. and 3.9 oz of one-piece titanium, optimized for .22 LR pistols and rifles.
Caliber: .22 LR | Length: 4.3 in. | Weight: 3.9 oz | Diameter: 1.28 in. | Min. barrel: None | Material: Titanium | Mount: 1/2x28 direct thread
What reviewers found
PEW Science: Tested it on a Beretta 21A (SSS.6.205) and found "no other silencers evaluated" that match its suppression performance in the same length.
CAT Shotgun Suppressor: CT 12 Gauge
Shop all shotgun suppressors.
CAT CT
The CT is a 12 gauge suppressor for pump and gas-operated semi-auto shotguns, from 2 3/4 in. target loads up to high-velocity slugs. The core is removable for cleaning.
Caliber: 12 gauge | Length: 7.31 in. | Weight: 17.5 oz | Diameter: 2 in. | Min. barrel: 7 in. | Material: TI-C | Mount: HUB, or choke-fit adapters
It's tuned around the Remington 870 and also suits the Genesis 12, Beretta 1301 and Mossberg 500. Choke-fit adapters cover Benelli Crio and Mobil, Beretta Optima HP, Browning Invector, Mossberg 500, and Remington and Remington Pro patterns, and it mounts directly to the Genesis 12 through the HUB rear.
CAT Suppressor Comparison Table
Length and weight ranges cover the HUB and QD versions, or the short and long setups on modular cans.
| Model | Caliber | Length | Weight | Diameter | Mount |
|---|---|---|---|---|---|
| ST | 5.56 to 6mm ARC | 6 to 6.4 in. | 9 oz TI-C / 17.5 oz Inconel | 1.6 in. | HUB or QD |
| WB | 5.56 | 5.45 to 5.8 in. | 14.6 to 16.1 oz Inconel | 1.6 in. | HUB or QD |
| KK | 5.56 | 4.5 in. | 14.5 oz Inconel | 1.6 in. | AI Nano QD |
| TSWIF | 5.56 | 5 in. combined | 16.6 oz combined | 1.7 in. | Blast diverter |
| NOAH | 6mm ARC, 5.56 | 6.15 to 6.5 in. | 8.6 oz Ti / 17.5 oz Inconel | 1.6 in. | HUB or QD |
| VB6 | 6mm ARC, 5.56 | 7.88 in. (4.26 in. added) | 13.5 oz TI-C | 1.75 in. | AI Nano QD |
| ODB | 7.62x39 to 7.62 NATO | 6.85 to 7.2 in. | 9.9 oz Ti / 18.2 oz Inconel | 1.6 in. | HUB or QD |
| AKB | 7.62 NATO to .300 WM | 6.04 to 6.4 in. | 9.1 oz TI-C / 17.5 oz Inconel | 1.6 in. | HUB or QD |
| DD | 7.62 NATO | 5.75 to 6.1 in. | 9 oz Ti / 16.6 oz Inconel | 1.6 in. | HUB or QD |
| JL | 7.62 NATO, 300 BLK | 8.2 to 8.55 in. | 13.2 oz Ti | 1.75 in. | HUB or QD |
| RAT | 300 BLK | 4.04 in. base; up to 7.53 in. | 7.1 oz base | 1.7 in. | AI Nano QD |
| CM | 6.5 Grendel to 6.5 PRC | 8.2 in. | 11.4 oz TI-C | 1.75 in. | HUB |
| BBK | .338 Lapua, 338 ARC, 8.6 BLK | 9.5 in. | 15.5 oz Ti | 1.8 in. | HUB |
| SC | 9mm pistol | 5.5 to 7.5 in. | 7.5 to 9.5 oz Ti | 1.4 in. | 1/2x28 piston |
| SC-S | 9mm pistol and PCC | 5.5 in. | 7.5 oz Ti | 1.4 in. | 1/2x28 booster |
| MOB | 9mm PCC and SMG | 7.39 to 7.74 in. | 9.9 to 10.7 oz Ti | 1.65 in. | HUB or QD |
| SP | .45 ACP pistol | 6.1 to 8 in. | 9.3 to 11.7 oz Ti | 1.47 in. | .578x28 piston |
| SR | .22 LR | 5.65 in. | 3.3 oz Ti | 1.05 in. | 1/2x28 DT |
| BEN | .22 LR | 4.3 in. | 3.9 oz Ti | 1.28 in. | 1/2x28 DT |
| CT | 12 gauge | 7.31 in. | 17.5 oz TI-C | 2 in. | HUB or choke fit |
Shortest 5.56: KK (4.5 in.). Shortest rimfire: BEN (4.3 in.). Largest caliber: BBK (.338 Lapua).
CAT Suppressor FAQ
Why does CAT make so many different suppressors?
CAT builds caliber-specific suppressors. Each model is tuned for the velocity and pressure of one cartridge and a reference host, like the WB for a 14 in. M4 or the ODB for a 16 in. AK-47. For one 5.56 can across every barrel length, CAT built the ST, and for one .30 cal can from 7.62 NATO to .300 Win Mag, the AKB.
Should I buy titanium or Inconel?
Titanium and TI-C weigh about half as much, which suits hunting and precision rifles. Inconel 718 is heavier but allows shorter barrels and handles aggressive firing schedules, which suits SBRs and high-volume shooting.
What is the difference between CAT HUB and QD versions?
The QD version has a built-in 1x16LH quick-detach feature; the HUB version has a 1.375x24 rear that takes any HUB mount. CAT's TSFX adapter turns a HUB version into a QD version.
What muzzle devices work with CAT QD suppressors?
CAT QD versions thread onto 1x16LH devices. Most ship with the Spooky 1 flash hider, and the KK, VB6 and RAT use the AI Nano. The 1x16LH thread is open source, so devices like the Noveske Pig Pen fit too. Use compact muzzle devices; some full-size devices won't clear the blast baffle. The KK works only with AI Nano devices.
What is the difference between the ST and the WB?
The WB is tuned for supersonic 5.56 on a 14 in. M4 and is 5.45 in. long on a HUB rear. The ST builds on the WB with added length and CAT's SBX internals, so it runs across all common 5.56 barrel lengths and is rated up to 6mm ARC.
Has CAT been independently tested?
Yes. PEW Science has published tests of the ST, WB, KK, TSWIF, ODB, AKB, DD, JL, MOB, SC, SR and BEN. The JL and BBK were also tested at the 2025 Silencer Summit.
Is CAT made in the USA?
Yes. CAT designs and manufactures its suppressors in the U.S.
What warranty do CAT suppressors have?
CAT offers a lifetime warranty on its suppressors against defects in materials and workmanship, with no time limit to make a claim.
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