JMac Customs – RRD-4C-28S KeyMo Muzzle Brake
(28) 1/2×28 threads
The best of both worlds! Our super effective RRD4-4C muzzle brake comp with KEYMO suppressor mount!
These are designed to install with provided shim kit on standard shoulder mount style barrels (factory muzzle device installed with crush washer) and can be permanently attached using the provided pin.
- Threads: 1/2-28 threads
- Length: 2.82″ long
- Material: 17-4ph Stainless
- Weight: 3.84oz