SL4i-SMG MP5 is ultra-compact and lightweight 9 mm suppressors for the MP5 submachine gun. A 3-lug mounting system to attach the suppressors to the standard MP5 barrels. Sound suppression 13–16 dB (1 m left of the muzzle), 13–15 dB (shooters left or right ear).

SL4i-SMG MP5 have a robust construction and they are built for a long service life. Suppressor adds only 75 mm to the length of the weapon. SL4i-SMG MP5 suppressor is intended for users seeking the most compact suppressor solution, whilst still proving moderate sound suppression.

The S series SL SMG suppressors are available with a variety of internal threads and quick mounts to fit on a variety of carbines and submachine guns.