SILENCERCO AC25 Piston Fit User Guide
- June 14, 2024
- SILENCERCO
Table of Contents
SILENCERCO AC25 Piston Fit
Product Specifications
- Thread Pitch: 1/2 x 28, 1/2 x 28XL, 1/2 x 28 SN, 1/2 x 36, 13.5MM X 1LH, 13.5MM X 1LH XL, 14.5MM x 1LH, 9/16 x 24, 5/8 x 24, 16MM x 1LH, 16MM x 1RH, .578 x 28, .578 x 28XL
- Caliber: 9MM, 40 S&W, 30 CAL, 45 ACP
- SKU: AC25, AC59, AC1756, AC57, AC26, AC626, AC27, AC31, AC30, AC28, AC29, AC24, AC1346, AC22
- Compatibility: Always check with the manufacturer of your barrel for the correct thread pitch. Manufacturers occasionally alter their thread pitches.
Product Usage Instructions
Piston Usage
The piston is a crucial component of the Nielson device for proper cycling of the pistol. It threads directly onto SilencerCo threaded barrels for easy installation. Pistons are interchangeable and can be swapped between firearms to accommodate different thread requirements.
Pistons are constructed with durable 17-4 stainless steel and undergo heat treatment for maximum durability.
Warning: Only use pistons with pistol calibers. Using a piston with a rifle caliber may lead to catastrophic failure. Contact customer service for further information.
Fixed Barrel Spacer Usage:
The Fixed Barrel Spacer is designed for use with firearms featuring fixed barrels. It complements the piston setup for optimal performance.
Compatibility:
All pistons are compatible with Spectre 9, Omega K Series, Hybrid 46, Hybrid 46M, Omega 36M, Octane Series, and Osprey Series silencers.
Contact Information:
For more information, visit silencerco.com, email info@silencerco.com, or call 801.417.5384.
FAQ
- Q: Can I use a piston with a rifle caliber?
- A: No, pistons should only be used with pistol calibers to avoid potential catastrophic failures. Contact customer service for more information.
The piston is part of the Nielson device that allows the pistol to cycle
correctly.* SilencerCo pistons thread directly onto SilencerCo threaded
barrels for easy installation.
Pistons are interchangeble. Use your silencer on multiple rearms by swapping
the piston to the required thread. Pistons are built with 17-4 stainless
steel, then heat-treated for maximum durability.
For unlocking pistol barrels. For fixed barrels, add a Fixed Barrel Spacer.
WARNING: Only use pistons with pistol calibers. Using a piston with a rifle caliber (such as 556) may cause catastrophic failure. Call customer service for more info
Piston
For use on pistols with unlocking barrels
Fixed Barrel Spacer
All pistons are compatible with Spectre 9, Omega K Series, Hybrid 46, Hybrid 46M, Omega 36M, Octane Series, & Osprey Series.
Fit Guide
| Thread Pitch | Caliber | SKU | Compatibility |
|---|---|---|---|
| 1/2 x 28 | 9MM | AC25 | Aftermarket Glock® 9mm |
| 9mm Springfield Armory® XD® 9 & XDM® 9 | CZ 9mm | Walther 9mm | |
| 1/2 x 28XL | 9MM | AC59 | Beretta® 92FS/M9 |
| 1/2 x 28 SN | 9MM | AC1756 | Glock 43, 43X, 42, Browning Hi-Power, FN FNS 9, Sig |
P938, P238
1/2 x 36| 9MM| AC57| Colt®, Rock River Arms® | 9mm Pistol Carbines
13.5MM X 1LH| 9MM| AC26| Factory H&K® 9mm | Factory Sig® 9mm | Factory Glock
9mm
13.5MM X 1LH XL| 9MM| AC626| Sig MPX (Osprey Only) | Beretta 92FS/M9 With
Metric Barrel
14.5MM x 1LH| 40 S&W| AC27| Factory H&K 40 S&W | Factory Glock 40 S&W
9/16 x 24| 40 S&W| AC31| Aftermarket Glock 40 S&W | 10mm | Springfield Armory
XD 40
5/8 x 24| 30 CAL| AC30| 300 AAC Blackout Subsonic
16MM x 1LH| 45 ACP| AC28| Factory H&K 45 ACP | Factory Glock 45 ACP
16MM x 1RH| 45 ACP| AC29| H&K MK 23 SOCOM
.578 x 28| 45 ACP| AC24| FNX™-45 | 1911 45 | Smith & Wesson M&P 45 |
Aftermarket Glock 45 ACP Factory Sig 45 ACP | Springfield Armory XD 45 |
Walther 45 ACP
.578 x 28XL| 45 ACP| AC1346| Select 1911 With Extended Guide Rods
Fixed Barrel Spacer| N/A| AC22| All Fixed Barrels
Always check with the manufacturer of your barrel for the correct thread pitch. Manufacturers occasionally alter their thread pitches.
- silencerco.com
- info@silencerco.com
- 801.417.5384