SilencerCo ASR 762 Muzzle Brake 9 16x24 AC1276 UPC 817272014808
Product Description
The SilencerCo® ASR 7.62 Muzzle Brake 9/16x24 (SKU: AC1276 / UPC: 817272014808) delivers exceptional recoil mitigation and serves as a rapid, rock-solid mounting platform for SilencerCo ASR suppressors. Engineered specifically for .30-caliber precision rifles and tactical platforms configured with 9/16x24 RH muzzle threading, this 3-port brake significantly counteracts muzzle rise and felt impulse, ensuring immediate target reacquisition and flat-shooting control when fired unsuppressed or staged as a sacrificial blast baffle inside your suppressor.
Precision-machined from 17-4 PH precipitation-hardening stainless steel and heat-treated to endure intense chamber pressure and high-temperature gas cutting, the AC1276 is finished with a resilient black nitride surface treatment. This protective QPQ layer provides outstanding resistance against carbon buildup, aggressive bore solvents, and harsh outdoor field conditions. The brake's lateral gas ports redirect expanding high-pressure propellant gases to neutralize rearward kick without inducing downward barrel whip or excessive dust printing.
At the rear shoulder, SilencerCo's proprietary Active Spring Retention (ASR) taper interface ensures repeatable concentric alignment and rock-solid lockup with compatible ASR Bravo and Charlie suppressor mounts. The integrated coarse-tooth retention system prevents the silencer from loosening during sustained strings of fire while permitting fast, one-handed attachment and removal. Every unit includes a complete armorer shim kit and high-temperature Rocksett adhesive for true bore-aligned timing straight out of the package.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Compatible with .30 caliber / 7.62mm barrels threaded in 9/16x24 RH (including select FN FAL platforms, Browning A-Bolt/X-Bolt factory threaded variants, and custom .300 Win Mag / .308 Win barrels). Directly mounts SilencerCo suppressors utilizing Bravo ASR (Omega 300, Hybrid 46, Harvester EVO) and Charlie ASR (Saker series, Chimera 300) adapters. CRITICAL: NEVER use a crush washer when mounting a suppressor-ready muzzle device; crush washers squash unpredictably and will induce bore misalignment, resulting in catastrophic baffle strikes. Always use the included precision alignment shims and Rocksett adhesive. Recommended torque value is 20 to 30 ft-lbs. Always verify bore-to-mount concentricity with a .30-caliber alignment rod prior to live-fire suppression. NOT compatible with standard 5/8x24 or 1/2x28 threads, and NOT intended for calibers larger than .30 caliber.
- Ensure the host firearm is completely clear, magazine removed, and chamber visually and physically verified empty.
- Clean and thoroughly degrease the barrel muzzle threads and shoulder using a residue-free solvent (e.g., acetone or 99% isopropyl alcohol) and allow to air dry.
- Dry-fit the muzzle brake with the included shim pack to establish correct horizontal port timing (with the top port indicator at 12 o'clock top dead center) when hand-torqued.
- Apply 2 to 3 drops of high-temperature Rocksett thread-locking compound across the clean barrel threads, thread the brake on, and torque to 20–30 ft-lbs using a 3/4-inch wrench on the rear flats.
- Allow Rocksett to cure completely for 24 hours, attach the ASR suppressor, visually inspect clearance with a .30-caliber bore alignment rod, and perform full dry-fire checks before live-fire staging.
Key Features
- Triple-Port Recoil Mitigation: High-efficiency 3-port lateral redirection chambers vent expanding gases sideways to drastically cut felt recoil and eliminate muzzle jump.
- Sacrificial Blast Baffle: Acts as an initial wear barrier inside your suppressor, absorbing high-velocity gas erosion and extending the service life of internal suppressor baffles.
- Patented ASR Mounting Interface: Proprietary Active Spring Retention taper-lock mechanism guarantees zero point-of-impact shift and prevents the can from backing off under hard use.
- 17-4 PH Heat-Treated Stainless Steel: Solid billet construction provides superior structural integrity and thermal resistance against high-cadence firing cycles.
- Black Nitride Surface Treatment: Ultra-hard QPQ finish resists powder fouling, bore cleaner solvents, and corrosive outdoor environmental conditions.
- Complete Armorer Installation Kit: Includes a multi-thickness timing shim pack and heat-resistant Rocksett thread-locking adhesive.
Product Specifications
- Brand: SilencerCo®
- Model/Series: ASR Muzzle Brake (3-Port)
- MPN / SKU: AC1276 / AC 1276
- UPC: 817272014808
- Caliber Compatibility: .30 Caliber / 7.62mm (.308 Win, 300 BLK, .30-06, .300 Win Mag)
- Thread Pitch: 9/16x24 RH
- Material: 17-4 PH Stainless Steel
- Finish: Matte Black Nitride / QPQ Melonite
- Overall Length: 2.50 inches
- Wrench Flat Size: 3/4 inch
- Mounting Interface: SilencerCo ASR Quick Detach
- Platform Compatibility: 9/16x24 Threaded Rifles & SilencerCo ASR Suppressors
- Country of Origin: United States
