The Dead Air Mojave Piston .578×28 (Dead Air part no. PB444) is the threaded piece that lets a Mojave silencer cycle a tilting-barrel handgun. Dead Air designed it to work inside the PB500 Booster Assembly, which ships with the Mojave 9 and Mojave 45, along with the internal booster spring. The thread pitch and bore are part of the part number, so this version is the one for a .45 pistol threaded .578×28. It is a fitment part, and getting the pitch right is the whole job.

Key Specifications

• The thread pitch is .578×28, so match it to your barrel before ordering.
• The through bore is .45 caliber, as Dead Air lists for this thread pitch.
• It is made for the Mojave 9 and Mojave 45 silencers.
• It works as part of the PB500 Booster Assembly, which ships with those silencers.
• It also uses the internal booster spring that completes the piston setup.
• It is intended for tilting-barrel handguns, the pistols whose barrels move as the slide cycles.
• It is one of seven Mojave piston pitches Dead Air offers, so the thread is what separates the options.

Frequently Asked Questions

What does this piston fit? It is the .578×28 piston with a .45 caliber bore, for tilting-barrel handguns running a Mojave 9 or Mojave 45.

Does it work with the booster assembly? Yes. It is designed to work as part of the PB500 Booster Assembly and internal booster spring.

Are there other Mojave piston threads? Yes. Dead Air lists seven pitches from 1/2-28 through M16x1 in both hands.

Buy the Dead Air Mojave Piston .578×28, .45 Caliber Bore

The .578×28 thread is the classic .45 pistol pitch, and this piston is the Mojave part cut for it. Match the number on the part to your barrel and the rest of the system fits together. Find more in our silencer parts and accessories, and order from our Lubbock, Texas gun shop for fast shipping.