Silencer Co Piston 9mm, 1/2x36 Thread, 17-4 Stainless Steel

Silencer Co Piston 9mm, 1/2×36 Thread, 17-4 Stainless Steel

$78.99

Silencer Co 9mm piston is made from 17-4 stainless steel and heat-treated for durability. It is part of a Nielsen device that supports semi-automatic cycling. Female 1/2×36 threading attaches to SilencerCo threaded barrels, including Osprey/Octane AC57.

Usually ready for pickup or shipping in about 2-3 business days

SKU: SCOAC57 Category: Tag: Brand:

Description

Silencer Co piston is a silencer accessory built to be swapped for different host firearms or calibers. It is made from 17-4 stainless steel and heat-treated for durability. This piston is part of a Nielsen device that moves to allow semi-automatic cycling for unlocking pistol barrels. A fixed barrel spacer can be used for fixed barrel applications, and the piston has female threading that attaches to SilencerCo threaded barrels.

Key details

  • Constructed from 17-4 stainless steel, heat-treated
  • Designed to attach to SilencerCo threaded barrels with female threading
  • Used with a Nielsen device that supports semi-automatic cycling
Specifications Value
Caliber 9mm
Thread Pitch 1/2×36
Material 17-4 stainless steel
Fits Osprey/Octane AC57

Additional information

UPC

817272010220
Manufacturer

Silencer Co
Manufacturer Part Number

AC57
Caliber/Gauge

9mm
Model

Piston
Product Type

Accessory-Silencer Accessories
Shipping Weight

0.1
Thread Pattern

.5×36

How You Get This Firearm

Pickup or ship to your FFL

This is an NFA-regulated item. It requires an FFL transfer (and, if not already completed, your ATF tax stamp) before you can take possession. Pick it up in person at our store (4755 US-280, Birmingham, AL 35242), or have it shipped to the FFL of your choice anywhere in the country.

Paperwork at pickup

A completed ATF Form 4473 and a NICS background check are required at pickup, per federal law. A valid Alabama concealed carry permit (regular or lifetime) can serve as an ATF-recognized alternative to the NICS check.

Transfer fees

Buying this listed item directly from us carries no transfer fee. If you'd rather ship in an NFA item you bought elsewhere for us to receive and transfer to you, that incoming NFA transfer runs $75, in addition to your ATF tax stamp. See our FFL Policy page for the full process.

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