Forward Controls Design 6315KM-L 5.56 Extended Flash Hider
6315KM-L (long) is the Dead Air sound suppressor Keymo mount of our 6315 (1/2×28) flash suppressor designed for 13.9″ barrels, compatible with .223 Dead Air sound suppressors with Keymo interface.
6315KM-L is 2.7″ long, and can bring a 13.9″ barrel to non-NFA length (16.1″, assuming 0.5″ of threading on the barrel).
Threaded for 1/2×28 and precision machined from solid 4140 steel bar stock. It is both heat-treated and QPQ-coated. Its 3 and 9 o’clock ports are 25% smaller (shorter and narrower) than the other three upward facing ports so more gas is vented through the upward facing ports, it is a superior compensator to the A2, its flash suppression is equal to that of an A2. 6315KM-L is compatible with Dead Air 5.56mm sound suppressors.  Note that since 6315KM-L has flash suppression capability equal to that of an A2, it should be treated as a flash suppressor in states that feel threatened by them, such as CA, MA, and NY.
6315KM-L is a light, blended performance muzzle device. It provides 15-20% better muzzle rise compensation than the A2.
Forward Controls Design is an authorized licensee of Dead Air suppressor mounts.
Proudly designed and made in the USA.
Specifications
- Machined in 4140, heat-treated, and QPQ-coated.
- Length: 2.7″ 6315KM Long is designed for 13.9″ barrels.
- Weight: 3.87oz
- Drilled for pinning
- Recommended torque: 25ft lbs +/- 5








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