The SilencerCo Piston in M16x1 right-hand thread (SilencerCo part no. AC29) is the mounting piece for SilencerCo’s Osprey and Octane pistol suppressors on a barrel cut to that thread. It is made from 17-4 stainless steel and heat treated for durability. It is the part of the Nielsen device that moves, letting a semi-automatic pistol cycle as the barrel unlocks. Its female threads screw onto the muzzle of the host pistol. This is the right-hand M16x1 piston, listed for .45 caliber hosts.

Key Specifications

• The thread is M16x1 right-hand, which has to match the host barrel.
• The material is 17-4 stainless steel, a strong, corrosion-resistant alloy.
• It is heat treated for maximum durability.
• It is the moving part of the Nielsen device, which lets the pistol cycle semi-automatically.
• Female threads let it attach to the threaded muzzle of the host pistol.
• It is made for the Osprey and Octane suppressor families.
• The thread is listed for .45 caliber hosts.

Frequently Asked Questions

How is this different from the M16x1 left-hand piston? The thread direction. This one is right-hand M16x1, and SilencerCo also lists a left-hand M16x1 piston, so match the direction to your barrel.

What does the piston do? It is the part of the Nielsen device that moves so a semi-automatic pistol can cycle, and its female threads attach to the host muzzle.

Which suppressors does it work with? SilencerCo’s Osprey and Octane suppressor families.

Buy the SilencerCo Piston, M16x1 Right-Hand Thread

Right-hand M16x1 is a specific thread, and this piston is the one cut for it. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more suppressor parts and accessories while you are here.