AIM7 Gsh-0.5-58T ASR Muzzle Brake 5/8X24 .30 cal
Description
AIM7 Gsh-0.58t ASR Muzzle Brake — 5/8×24 Thread
The AIM7 Gsh-0.58t ASR Muzzle Brake is a 5/8×24 threaded muzzle device engineered for compatibility with the SilencerCo ASR (Active Spring Retention) mounting system. It enables quick and secure attachment or removal of ASR-compatible suppressors, providing shooters with greater flexibility and convenience.
🔧 Key Features
- Thread Pitch: 5/8×24 — ideal for larger calibers such as .308 Win, 7.62 NATO, 6.5 Creedmoor, and similar.
- ASR Mount Compatible: Works seamlessly with SilencerCo’s ASR mounting system for fast, reliable suppressor installation.
- Material: Made from SUS303 stainless steel, valued for its corrosion resistance, machinability, and durability.
- Dimensions:
- Overall length: ~1.80″
- Outside thread pitch (for ASR mount collar): 13/16×16
- Bore size: 0.38″ — ensure it is appropriate for your caliber.
⚠️ Important Notes
✅ Caliber Matching:
Always verify that the bore diameter of the muzzle brake is appropriate for your firearm’s caliber. Using a brake designed for .30 cal (.308/7.62) on a larger bore (like 9mm or .338) can cause dangerous pressure spikes.
✅ Suppressor Mounting:
Check that your suppressor is designed for use with a 5/8×24 threaded barrel and is compatible with the ASR mounting system.
🔍 Material Overview: SUS303 Stainless Steel
This muzzle brake is manufactured from SUS303 (equivalent to AISI 303), an austenitic stainless steel known for its ease of machining and corrosion resistance.
| Property | Description |
|---|---|
| Composition | Fe, 17–19% Cr, 8–10% Ni, ~0.15% S, ~1% Mn |
| Machinability | Excellent (better than SUS304) |
| Corrosion Resistance | Good, slightly lower than SUS304 |
| Tensile Strength | Moderate (500–750 MPa) |
| Weldability | Poor (due to sulfur content) |
| Magnetism | Non-magnetic (annealed condition) |
SUS303 is a good choice for civilian semi-automatic rifles and moderate use, but it is not intended for extreme military-grade abuse.
⭐ Summary
The AIM7 Gsh-0.58t ASR Muzzle Brake offers solid recoil reduction, suppressor compatibility, and reliable performance at a reasonable price point. Its ASR system integration makes it ideal for shooters who want to switch between suppressed and unsuppressed configurations quickly and securely.
