Siege ROC 556 - DEMO
Capitol Armory is licensed in all suppressor-friendly states. Form 4 or 4473? Read 4473 vs. Form 4 Suppressors. Your choice during checkout. See how suppressors direct to your door works or choose to send to your local dealer.
Under ATF's October 9 policy, you can buy a suppressor on a 4473 in some states. We still recommend a Form 4: it stays compliant if the policy changes, and ATF approvals come back in days.
The Siege ROC 556 is a 5.56 NATO suppressor built around a Linear Diffuser Array that redirects propellant gasses radially through turbulent and laminar flow cells. It has no baffles or angular internal features, which reduces back pressure and improves erosion resistance. Monolithic stainless steel and Inconel construction. Uses the 1.375x24 HUB/Bravo mounting system.
USED CONDITION
- In-store demo unit, sat on the shelf
- Less than 50 rounds fired
- Fresh coat of Cerakote, looks brand new on the outside
- Retains full manufacturer warranty
SPECIFICATIONS
- Caliber: 5.56mm / .223
- Length: 7.65 inches
- Diameter: 1.5 inches
- Weight: 18.06 ounces (mounted)
- Materials: Precipitation hardening stainless steel and Inconel
- Finish: Nitride (with applied Cerakote on this unit)
- Mount: 1.375x24 HUB/Bravo
- Full-auto rated
- No minimum barrel length
- Lifetime warranty
WHAT'S INCLUDED
- Original box
- 1/2x28 HUB direct thread mount
| Weight | 1lb 2.06oz |
|---|---|
| Manufacturer | Siege |
| Length | 7.65 |
| Diameter | 1.5" |
| Decibel Reduction / Output | Not Provided |
| Full Auto Rated | Yes |
| Mount | HUB/Bravo - 1.375x24 |
| Thread Pitch | 1/2x28 |
| Color | Black |
| Materials | Precipitation Hardening SS & Inconel Linear Diffuser Array |
| Can Be Disassembled | No |
| Warranty | Lifetime |
