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Product information
Overview
SCO PISTON 1/2X28 XL
Description
SilencerCo pistons are designed for easy replacement to fit different host firearms or calibers. They are made from 17-4 stainless steel and heat-treated for maximum durability. The piston is part of the Nielson device, which moves to enable semi-automatic cycling and unlock pistol barrels. Use a Fixed Barrel Spacer for fixed barrel setups. SilencerCo pistons feature female threading that connects to SilencerCo threaded barrels.
Specifications
| Manufacturer | Silencer Co |
|---|---|
| Model | Osprey/Octane |
| SKU | RSR|SCOAC59 |
| UPC | 817272010237 |
| Manufacturer Part Number | AC59 |
| Caliber/Gauge | 9mm |
| Length | 6.5 |
| Package Height | 0.8 |
| Package Width | 4.4 |
| Product Type | Piston |
| Shipping Weight | 0.105 |
| Thread Pattern | 1/2"-28 tpi |
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Questions & answers
How will this item ship?
Eligible non-firearm items may ship to an address that meets shipping rules, or you can choose local pickup at STX Bullseye when available. Restrictions can apply by product and destination.
Does this require an FFL transfer?
This listing does not require an FFL transfer. Firearm receivers and other regulated items are labeled separately when FFL transfer is required.
What if I have compatibility questions?
Contact STX Bullseye before purchase if you need help confirming fitment, caliber, or mount compatibility. Staff can review the listing details with you.
How do I contact STX Bullseye?
Call (956) 314-0879 or visit the Contact page. Store hours and location details are listed on Contact and About.
Answers are general store information and are not personalized legal advice.
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