FightLite Industries announced integrated suppressor receiver for this popular pistol, named STEP-22LS(Strategic Target Engagement Pistol Low Signature). It fits all Mk series and also has Picatinny rails on top. Suppressor is claimed to reduce noise by 40 decibels.
It is expected to be available starting July 1st. MSRP is $699
From:
Guns.com,
Soldier Systems Daily