The SilencerCo AC24 Piston (.578x28) is the professional-grade mounting solution required to run your SilencerCo suppressor on most .45 ACP handguns. Precision-engineered to serve as the heart of your suppressor’s booster assembly, this piston ensures your semi-auto pistol cycles reliably every time you pull the trigger.
Reliable Semi-Auto Cycling
Most .45 ACP handguns (like the 1911, HK45, or Sig P220) use a tilting-barrel action. The AC24 piston acts as the moving component of the Nielsen device (booster), allowing the barrel to recoil independently of the suppressor's weight. This prevents "short-cycling" and ensures smooth feeding and extraction.
Rugged, Duty-Ready Build
- 17-4 Stainless Steel: Built from high-strength, aerospace-grade stainless steel to handle the high pressures of .45 ACP.
- Heat-Treated Finish: Specially treated for maximum hardness, ensuring the threads and engagement teeth won't wear down even after thousands of rounds.
- Precision Threading: Cut to a perfect .578x28 thread pitch, the industry standard for threaded .45 ACP barrels.
Universal SilencerCo Compatibility
The AC24 is a versatile "workhorse" piston that fits the entire flagship SilencerCo pistol line:
- Osprey Series (45, 45K, and 9mm models)
- Octane Series (9, 45, and 45 2.0)
- Omega K Series (9K and 45K)
- Hybrid 46 / 46M (requires piston mount)
Quick Specs
- Model: AC24
- Thread Pitch: .578x28
- Main Caliber: .45 ACP
- Material: Heat-Treated 17-4 Stainless Steel
- UPC: 817272010145
Usage Note: For maximum performance, apply a light coat of high-temp grease to the outside of the piston before installation to ensure smooth movement within the booster assembly.
| MANUFACTURER | SILENCERCO |