The PWS BDE-K 5.56mm suppressor is a compact titanium rifle can with a monocore baffle (PWS part no. BDE556K). Primary Weapons Systems prints it in Grade 5 6AL-4V titanium and rates it up to 5.56x45mm NATO. With the included PUB mount installed it measures 5.5 inches long and weighs 11.5 ounces. The serialized entrance chamber is separate from the monocore and end cap, which makes it easier to service. It suits short 5.56 rifles where length and weight matter most.

Key Specifications

• The caliber rating is up to 5.56x45mm NATO, the figure PWS publishes for this model.
• Overall length is 5.5 inches with the PUB mount installed, compact for an AR-15 suppressor.
• Overall weight is 11.5 ounces with the PUB mount installed, light for a titanium rifle can.
• It is 3D-printed Grade 5 6AL-4V titanium, which PWS says is lighter and stronger than machined titanium.
• The monocore baffle is separate from the serialized entrance chamber and end cap for easy service.
• The thread pattern is a universal 1.375×24, compatible with most suppressor mounts.
• The included PUB mount attaches concentrically to the PWS FRC and other popular muzzle devices.

Frequently Asked Questions

How does the BDE-K differ from the full-size BDE 5.56? The BDE-K uses a single monocore baffle and measures 5.5 inches with its PUB mount, where the full-size BDE 5.56 uses removable modular baffles.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

What is the PUB mount? It is the mount included with the BDE-K. PWS says it allows concentric attachment to the PWS FRC and other popular muzzle devices.

Buy the Primary Weapons Systems BDE-K 5.56mm Compact Titanium Suppressor, PUB Mount

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Primary Weapons Systems‘s suppressor lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.