Flash hider front cap
The included flash hider front cap aids in excellent visual signature reduction.
Interchangeable front caps
The Sierra-5 is compatible with all of our R-Series front caps, including our E-Brake.
Fully-welded construction
All Stellite® baffles and full penetration laser welding ensures a robust and solid monolithic core structure. Then welded to the outer tube for additional strength and durability.
The Sierra-5 is optimized specifically for high-performance out of the 5.56 platform in sound and flash suppression, while maintaining a low blowback, short pressure impulse.
Mounting modularity
The Sierra-5 KM ships with the complete KeyMo system (adapter and flash hider). But thanks to the 1.375-28″ HUB socket you can change your mind without regret.
The Sierra-5 features a small hole drilled through the blast chamber making it possible to pin & weld your adapter or insert to the suppressor.
Ships with 1/2-28 KeyMo flash hider and KeyMo adapter
Utilitarian design
The outer tube is knurled to provide a strong purchase for securing and removing the silencer. It also serves extremely well in securing heat-protective wraps.
The Sierra-5 also boasts heavy lug tooling features allowing for secure tightening and loosening adapters with included tools.
CALIBER RATING | 5.56 NATO, 224 Valkyrie |
ENERGY RATING | 2200+ ft lbs |
BORE DIAMETER | 5.56mm |
LENGTH (NO ADAPTER) | 4.87 inches |
LENGTH (W/KEYMO) | 6.27 inches |
DIAMETER | 1.5 inches |
WEIGHT (NO ADAPTER) | 10.8 ounces |
WEIGHT (W/KEYMO) | 15.4 ounces |
MATERIALS | Stellite® baffles, stainless steel |
FINISH | Black Cerakote® |
USAGE | Ideal for heavy firing schedules |
MSRP | $929 |
BARREL RESTRICTIONS | None |
FULL AUTO RATED | Yes |
PART NUMBER | SIERRA5KM |