Inter-Store Transfer

If this item is out of stock at your local RifleGear but available at our other location, no problem. Just place your order and select In-Store Pickup as the shipping method. As long as the item is legal in your location, we will transfer the item for you. You will be notified by email once your item has arrived at the destination.

The Sierra 5 is a dedicated hard-use 5.56 suppressor and utilizes stainless steel baffles and stainless outer tube. The Sierra 5 is full-auto rated with no barrel restrictions. Offering the perfect balance of overall sound and flash suppression while having a compact footprint and minimal weight. Using a HUB compatible mounting adapters, the Sierra 5 is available for the KeyMo or Xeno mounting system.
Ships with a KeyMo adapter and 1/2×28 KeyMo Flash Hider.

Features

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 R-Series front caps, including the 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 XM 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.

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.

SPECIFICATIONS

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®

BARREL RESTRICTIONS
None

FULL AUTO RATED
Yes

*Not available for California and Restricted States.

This item has to be shipped to a licensed class III dealer. All NFA rules apply.