SilencerCo XL Suppressor Piston for .45 ACP, .578x28 Threads, 17-4 Stainless Steel AC1346

Product Description

The SilencerCo AC1346 XL piston is designed for quick caliber or host changes and is a key component of the Nielsen device, helping suppressor-equipped semi-automatic pistols cycle reliably during barrel unlocking. Built from heat-treated 17-4 stainless steel for maximum durability, it features female threading to mate with SilencerCo threaded barrels. Add a Fixed Barrel Spacer when using fixed-barrel hosts.

Product Highlights

• XL-length .578x28 piston for .45 ACP pistol suppressor setups
• Heat-treated 17-4 stainless steel construction for long service life
• Part of the Nielsen device system to support consistent semi-auto cycling
• Easy to swap pistons for different hosts and calibers
• Female threads interface with SilencerCo threaded barrels; use a Fixed Barrel Spacer for fixed barrels

Specs

• Brand: SilencerCo
• Model: Piston (XL)
• Caliber: .45 ACP
• Thread Pattern: .578 x 28 XL
• Material: 17-4 Stainless Steel (heat-treated)
• MPN: AC1346
• UPC: 817272015287

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