Dead Air DA401 P-Series Piston 1/2x28 TPI Black Cerakote Suppressor

The Dead Air DA401 P-Series Piston delivers reliable suppressor mounting with the industry-standard 1/2x28 thread pitch. This black Cerakote-finished piston provides secure attachment for .223/5.56 and .300 Blackout suppressors on compatible barrel threads.

What Makes This Different

The P-Series piston system eliminates the alignment issues common with direct-thread suppressors. Unlike fixed mount systems, this piston allows the suppressor to self-align during installation, reducing baffle strikes and maintaining accuracy. The spring-loaded design absorbs recoil energy while maintaining a gas-tight seal through thousands of rounds.

Key Features

• 1/2x28 TPI threading fits standard AR-15 barrels in .223/5.56 and .300 Blackout
• Black Cerakote finish resists corrosion and high-temperature degradation
• Spring-loaded piston design allows suppressor self-alignment
• Compatible with Dead Air Sandman, Nomad, and other P-mount suppressors
• Tool-free installation and removal for quick suppressor swaps
• Precision-machined steel construction handles full-auto firing schedules
• Low-profile design maintains sight picture with standard optics

Field testing demonstrates consistent point-of-impact shifts under 1 MOA when switching between suppressed and unsuppressed configurations. The piston system handles rapid-fire strings without loosening, maintaining zero through extended shooting sessions. Law enforcement and competitive shooters rely on this mounting system for duty rifles and precision applications where suppressor removal may be necessary.

Technical Specs

• Thread Pitch: 1/2x28 TPI
• Material: Heat-treated steel
• Finish: Black Cerakote
• Weight: 0.8 oz
• Length: 1.2 inches
• Compatible Systems: Dead Air P-mount suppressors
• Temperature Rating: -40°F to 1,200°F
• Country of Origin: USA

The DA401 P-Series Piston represents proven mounting technology trusted by military and civilian users worldwide. Professional armorers stock this component for suppressor maintenance and multi-host configurations requiring reliable, repeatable mounting performance.