Dead Air Keymount Muzzle Brake 7 62MM 5 8x24 DA102 UPC 810128160391
Product Description
The Dead Air Keymount Muzzle Brake (DA102) in 5/8x24 thread pitch is a high-performance recoil mitigation device and quick-detach suppressor mount designed for .30 caliber / 7.62mm rifle platforms. Engineered to serve as a rock-solid mounting adapter for Dead Air Sandman series suppressors and KeyMo-equipped silencers, this muzzle brake delivers exceptional recoil reduction and muzzle flat control when shooting unsuppressed.
Precision-machined from alloy steel with a durable black Nitride finish, the DA102 features a dual-port baffle design that redirects expanding propellant gasses sideways to minimize felt recoil and muzzle rise. Additionally, acting as a "sacrificial baffle" inside the suppressor's blast chamber, the muzzle brake absorbs peak blast pressures and erosion, significantly extending the operational lifespan of your silencer's internal baffle stack.
The KeyMo fast-attach ratchet system guarantees repeat zero retention and taper-mount alignment, eliminating suppressor backing-off under automatic or rapid semi-automatic fire. Complete with a shim kit for precise timing alignment, the Dead Air DA102 Keymount Muzzle Brake is an essential upgrade for AR-10, 300 Blackout, .308 Win, and 6.5 Creedmoor carbines and precision rifles.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Direct fitment for barrels with 5/8x24 thread pitch chambered in .30 caliber / 7.62mm or smaller (.308 Win, 300 AAC Blackout, 6.5 Creedmoor, 6.5 ARC, .243 Win). Interfaces directly with Dead Air Sandman-K, Sandman-S, Sandman-L, and any suppressor equipped with a KeyMo adapter hub.
- Ensure the host firearm is completely clear, magazine removed, and chamber visually and physically verified empty.
- Clean and degrease barrel muzzle threads and shoulder using isopropyl alcohol or dedicated solvent.
- Select the appropriate shim combination from the included shim set to time the brake ports flat at the 3 o'clock and 9 o'clock horizontal positions. Never use crush washers with suppressor mounts.
- Apply a drop of high-temperature threadlocker (e.g., Rocksett) to the barrel threads, thread the DA102 onto the muzzle, and torque to 25–30 ft-lbs using a 3/4" wrench or dedicated muzzle device socket. Allow threadlocker to cure fully prior to shooting suppressed.
Key Features
- KeyMo Quick-Detach Interface: Enables rapid, rock-solid one-handed suppressor attachment and removal with repeatable zero retention.
- Dual-Port Recoil Reduction: Side baffle ports aggressively minimize felt recoil and keep the sights flat on target.
- Sacrificial Blast Baffle: Protects internal suppressor baffles from erosion and high-velocity gas abrasion during rapid firing.
- Black Nitride Surface Treatment: Ultra-hard, corrosion-resistant finish withstands intense blast heat and carbon buildup.
- Includes Timing Shim Set: Ships with a multi-thickness color-coded timing shim kit for precise index alignment.
Product Specifications
- Brand: Dead Air Silencers
- Model/Series: Keymount (KeyMo) Muzzle Brake
- MPN / SKU: DA102 / DA102
- UPC: 810128160391
- Caliber Compatibility: 7.62mm / .30 Caliber (and smaller down to .223/5.56)
- Thread Pitch: 5/8" x 24 tpi
- Suppressor Alignment: KeyMo Quick-Detach Taper Interface
- Material: Machined Alloy Steel
- Finish/Color: Black Nitride
- Country of Origin: United States
