SKU CSSI|IKAC25 Category

SilencerCo Suppressor Piston 1/2×28 Black

SilencerCo Suppressor Piston 1/2×28 Black

$75.65

86 in stock

SilencerCo pistons were designed to be easily changed for different host firearms or calibers. Pistons are built with 174 stainless steel then heat-treated for maximum durability. The piston is part of the Nielson device that moves and allows semi-automatic cycling for unlocking pistol barrels. Throw a Fixed Barrel Spacer on for fixed barrel applications. SilencerCo pistons have female threading that attaches to SilencerCo threaded barrels.

XL pistons are for firearms where the silencer requires additional length between the threaded barrel and the silencer.

Compatible with

  • Omega K Series
  • Hybrid 46
  • Hybrid 46M
  • Osprey Series
  • Octane Series
  • Omega 36M

Additional information

Upc

817272010152

Manufacturer

Silencer Co

Manufacturer part number

AC25

Length

2.1

Model

Osprey/Octane

Package height

1.0

Package width

4.6

Product type

Piston

Shipping weight

0.1

Thread pattern

1/2"-28 tpi

FAQ

BJ Firearms LLC is a federally licensed firearms business focused on providing quality firearms, accessories, and related services while promoting responsible ownership, education, and community engagement.

The company was founded to serve firearm enthusiasts with knowledgeable service, real-world experience, and a commitment to professionalism and safety.

We focus on real experience, personalized service, hands-on product knowledge, and community involvement — not just sales. Our goal is to help customers make informed decisions and feel confident with their equipment.

Yes. We operate as a federally licensed firearms dealer (FFL), following all applicable federal, state, and local regulations.

Yes. We partner with trusted suppliers to provide quality products and reliable sourcing.

Yes. We partner with content creators and industry professionals to provide real-world insights and experiences.

We work with everyone — from first-time buyers to experienced enthusiasts. Education and guidance are a big part of what we do.

We offer firearms, accessories, gear, and related equipment depending on availability and customer needs.

Yes. We help customers evaluate their needs, experience level, and intended use to find the right fit.

Yes. Depending on the request, we can help source specific products or assist with custom configurations.

Yes. We actively engage in hands-on experiences, demonstrations, and community-related firearm activities when possible.

Yes. We support content that helps people learn about equipment, safety, and responsible firearm ownership.

Social Media Posts

Via Vontaes_Gunz

Customer Reviews

“Outstanding customer service.” I had a lot of questions before buying, and they walked me through everything without pressure. Super knowledgeable and easy to work with. You can tell they actually care about their customers.
Verified Customer
“Best experience I’ve had buying gear.” Professional, responsive, and honest. They helped me choose exactly what I needed without overselling anything. I’ll definitely be coming back.
Verified Customer
“Great people, great service.” Very down-to-earth and easy to talk to. They explain things clearly and make sure you understand your options. Highly recommend, especially if you’re new.
Verified customer

BJ FIREARMS LLC

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