The MP5SD is known throughout the gun industry as to being one of the best semi-automatic fire arms in the world right now. The gun has a very long suppressor that is approximately fourteen inches which give the gun a lot of great use. The gun is also able to shoot with very minimal noise at it shoots with subsonic speeds.
- The MP5SD has a suppressor that is nearly a foot long and two inches in diameter.
- The SD uses a reflex-type design where the suppressor mounts close to the chamber, rather than on the end of the muzzle.
- As the bullet travels down the barrel, gases bleed off into the suppressor from the ports, keeping the bullet’s velocity below the approximately 1150 feet per second speed of sound.
“Instead of requiring specialized ammo, the MP5SD reduces the velocity of virtually all commercial rounds, making it one of the most quiet submachine guns ever designed.”