PTR VENT 3 – 5.56X45MM SUPPRESSOR
$1,499.00
Purposefully Induced Porosity ™
- Compatible With:5.56x45mm NATO, 5.7x28mm
The PTR VENT 3 is PTR’s lightweight, full-size 5.56 suppressor, combining a monolithic 3D-printed titanium structure with Purposely Induced Porosity™ (PIP) technology for sound and gas management. It weighs 11.75 ounces without the mount, keeping front-end mass low while retaining the length and internal volume of a full-size rifle suppressor. A 1-3/8×24 HUB interface provides mounting flexibility, while the included 1/2×28 direct-thread adapter supports conventional 5.56 rifle configurations.
PLEASE NOTE: PTR suppressors purchased through PTR-US.com are transferred to an authorized dealer. Your dealer will determine whether that transfer is completed using a Form 4 or Form 4473, based on applicable federal, state, and local requirements.
- Product Description
Product Description
The PTR VENT™ 3 – 5.56×45mm Suppressor is a lightweight, high-performance 5.56 suppressor engineered to deliver exceptional sound-signature suppression with reduced back pressure on semiautomatic rifle platforms. Designed specifically around the demands of 5.56, the VENT 3 combines advanced additive manufacturing with PTR’s patented Purposely Induced Porosity™ (PIP) technology to manage sound, gas flow, and weight as part of the complete suppressed weapon system.
At the core of the VENT 3 is a monolithic, 3D-printed titanium structure that allows PTR to engineer complex internal geometry directly into the suppressor. PIP uses controlled porous structures and gas pathways to manage expanding combustion gases through increased surface interaction, heat transfer, and controlled flow. Rather than relying exclusively on a traditional restrictive baffle architecture, the VENT 3 is designed to maintain high gas flow while delivering strong suppression—helping reduce the back-pressure effects that can influence gas at the shooter, port signature, and weapon behavior on semiautomatic 5.56 platforms.
At 7.75 inches long and just 11.75 ounces without the mount, the VENT 3 delivers full-size 5.56 suppression without excessive weight at the muzzle. Its monolithic titanium construction provides an exceptional strength-to-weight balance, making the VENT 3 well suited to AR-platform rifles and suppressed 5.56 builds where handling, balance, and overall system performance matter alongside sound reduction.
Independent testing provides measurable proof of the VENT 3’s performance. PEW Science recorded a composite Suppression Rating™ of 42.6 on its standard untuned 10.3-inch MK18 test host using Federal XM193 ammunition. In that test configuration, PEW Science documented strong combined muzzle and shooter-ear suppression along with low-back-pressure behavior, demonstrating the VENT 3’s ability to balance sound reduction and gas management on a demanding short-barreled 5.56 platform.
The VENT 3 is also designed around mounting flexibility. It includes a 1/2×28 direct-thread adapter and uses the industry-standard 1.375×24 HUB mounting interface, allowing shooters to configure the suppressor with a range of compatible mounting systems. In addition to 5.56×45mm, the VENT 3 supports 5.7×28mm within current PTR guidance and is rated for limited full-auto use within PTR’s specified firing schedule.
For shooters looking for a lightweight 5.56 suppressor without choosing between sound suppression and gas management, the VENT 3 brings those priorities together in one purpose-built system. Advanced PIP architecture, 3D-printed titanium construction, HUB compatibility, and independently validated suppression performance make the VENT 3 the lightweight, full-size 5.56 option in the PTR VENT family.
- Product Details
Product Details
Weight 11.75oz (No Mount)
Length 7.75” (No Mount)
UPC 897903003609
Material 3D Printed Titanium
Color Black
Overall Finish Advanced proprietary internal and external coating
Diameter 1.625"
Rated Full-Auto Capable
Patent Covered by one or more of the following U.S. Patents: 9,470,466/9,777,979/9,982,959/10,330,418/11,092,399/10,690,431/11,435,155
Additional Features Suppressor is threaded 1 3/8 x 24 for optional adapter, Patented 3D-printed monolithic structure with Purposely Induced Porosity™
Supplied Adapter Direct Thread, Thread Pitch 1/2 x 28
Product Type Suppressor
Patented Design Covered by one or more of the following U.S. Patents: 9,470,466/9,777,979/9,982,959/10,330,418/11,092,399/10,690,431/11,435,155
- VENT Manual
For the complete manual of PTR VENT Suppressors, please follow this link
- CLEANING VENT SUPPRESSORS
Cleaning the PTR® VENT™ family of suppressors is a simple but important part of ownership. Much like maintaining the air filter on your car or air conditioner, fouling will accumulate with use over time and needs to be addressed for maximizing the effectiveness of the system. Regular cleaning and proper maintenance will increase the performance and lifespan of the suppressor. The exact round count at which to clean the VENT suppressor is highly dependent on the combination of the host weapon, barrel length, and ammunition choice; a good general guideline is to run a cleaning cycle on the P.I.P. (Purposely Induced Porosity) at the muzzle end of the suppressor around the 1,500-round mark for centerfire rifle cartridges and 1,000-rounds for centerfire pistol cartridges. A full head-to-toe cleaning cycle of the suppressor is recommended around the 5,000 round mark regardless of caliber.
There are several effective suppressor cleaners that are safe for the titanium construction of the VENT suppressor line as well as the PVD coating.
These include (but are not limited to) C.A.T 206, and Bore Tech Decimator. To date, our testing has shown C.A.T. 206 to be the most effective solvent for cleaning. The process for cleaning is a simple two or three step process based on the equipment you have available to you.
Note: We highly recommend the use of an ultrasonic cleaner (these are readily available for a reasonable price) to increase the effectiveness of cleaning, but it is not required.
1. Soaking
1. Find a suitable vessel in which to place the muzzle end of your VENT suppressor to allow it to be saturated in the solvent of your choice. Clear cups are a cost-effective option, but a glass mason jar, solvent safe plastic cup, or a Breakthrough Suppressor Cleaning Kit work perfectly well.
2. Fill your vessel up approximately 2”-3” with your solvent of choice and place your VENT suppressor muzzle down inside. Allow the P.I.P. (Purposely Induced Porosity) muzzle end of the suppressor to soak in the cleaner anywhere between 4 and 12 hours, depending on the severity of fouling. If required, it is ok to soak beyond the recommended cleaning schedule. If able, slight agitation every-so-often is helpful but not necessary.
3. OPTIONAL BUT RECOMMENDED STEP: If you are using an expensive solvent, fill an ultrasonic cleaner with at least 2” of water then place the suppressor still inside the vessel holding the solvent used in the previous steps into the sonic bath to agitate it.If you are using a cost-effective solvent, place your VENT suppressor in a sonic bath filled up with at least 2” of the solvent of your choice. Follow the manufacturer’s instructions. Some solvents may be incompatible or dangerous for use with your ultrasonic cleaner. Run the sonic bath machine for approximately 30-minutes on the vibration cycle. This cycle is more powerful than static soaking and will aid in breaking up fouling that is far beyond what would be accrued by the recommended schedule.
2. Rinsing
1. Remove the VENT suppressor from your solvent vessel and thoroughly rinse with water from both the front and rear of the suppressor.
2. Once most of the retained solvent is flushed, plug the muzzle end of the suppressor with the palm of your hand and fill the suppressor approximately halfway with clean water. Plug the mounting end with your other palm and vigorously agitate the water trapped inside. Pour the water out and repeat this process until the liquid leaving the suppressor looks unchanged.
3. OPTIONAL BUT RECOMMENDED STEP: Place your VENT suppressor back into the sonic cleaner and run a short cycle to remove whatever stubborn residue is left on the inside.
4. We recommend allowing the suppressor to fully dry out before use to minimize the possible inhalation of chemicals from gas blowback. Use of compressed air to expedite this process can be helpful.This cleaning cycle mostly focused on the muzzle end of the suppressor. A full head-to-toe cleaning cycle of the suppressor is recommended around the 5,000 round mark regardless of caliber. This simply involves filling the suppressor fully with solvent versus the lower level in the above steps. When used in conjunction with the lower round count cycle, your suppressor should stay effective for many rounds to come.
Note: If using the VENT 2 suppressor heavily on a pistol caliber carbine, it may be necessary to do an inverted version of the cycle outlined above before switching to pistol suppression. This will clean out the locking recesses of the booster cage within the blast chamber. Failure to do so may result in misalignment of the piston and cause damage to the suppressor. Because the user has direct access to this portion of the suppressor, it is recommended they use brushes, picks, and other tools to aid in and expedite this process.
- Product Reviews (3)
3 reviews for PTR VENT 3 – 5.56X45MM SUPPRESSOR
Only logged in customers who have purchased this product may leave a review.
- Lifetime Warranty
All of our products are built to last. We proudly stand behind the quality of every product we manufacture and hope you’re happy with your gear. All products we manufacture are fully warranted against defects in materials and workmanship with a Limited Lifetime Warranty.


































Tyler (verified owner) –
THIS THING IS QUIET!! I very rarely leave reviews unless the product leaves a lasting impression and far exceeds my expectations. And this suppressor soared over every expectation I had. It is insanely quiet. It doesn’t gas me out. It looks badass. And it is extremely light, even for its size. I cannot say enough good things about it. If you are considering buying one, make like Nike and JUST DO IT! Do your research and make sure everything else suits your needs first of course. But I will absolutely be buying more of these in other calibers in the near future. And I am hoping they come out with a shorter lineup of suppressors as well.
royaldunez (verified owner) –
Took it to the range on my Steyr AUG, & it shot great! Very light weight, & a good purchase IMO. My range buddy tried it on his PS90, which shoots 5.7×28 bullets (which are wider around than 5.56×45 bullets). Gonna get the 7.62 soon, because yeah, this is a winning design!
Karl –
I used to think shooting 556 suppressed was okay with traditional suppressors. I was never blown away by sound reduction performance and didn’t enjoy shooting AR suppressed. All that changed today when I picked up my PTR and went to the range. The performance on an 11.5 AR blew me away. The VENT 3 is light and quiet, with no gas to my face. I almost thought I was shooting 300 Blackout. I direct threaded the can into the barrel using the supplied mount. At first, I was worried, but it cut down on length and weight with no ill effects to the can or rifle. The DT mount is made of steel and is of good quality. The adapter has a lot of threads, making for a tight fit to the suppressor body. I was so impressed with the VENT 3 that I ordered a PTR VENT 1 for larger calibers.