The USP TACTICAL has been developed for users requiring the features of the MK23, but preferring a more compact weapon.

The USP SD (Sound Dampened) is the 9 mm version of the USP TACTICAL. It is a full size USP9 variant 1 (SA/DA) 9mm x 19 NATO pistol fitted with a frame mounted left side control lever that acts as a combined manual safey and decocking lever. The standard USP9SD is fitted with match trigger partsand click adjustable sights of sufficient height to see over the mounted optional sound suppressor. An ambidextrous safety lever and optional 3 dot tritium sights are also available. The barrel is threaded left hand, does not have an o-ring and does not require a thread cap.

An optional Brügger & Thomet (B&T) "Impuls IIA" stainless steel screw on sound suppressor is matched to the pistol via the last three digits of the weapon's serial number when they are assembled together at the factory.

The B&T sound suppressor was developed specifically for use on the HK USP9 pistol and has its own separate serial number. It is possible to reduce the sound signature by an additional 1 to 3 dBs over that of the dry suppressor by adding 5 cc of water to the sound suppressor baffles. It will also help reduce the first round "pop" often experienced with a dry sound suppressor. This water will help cool the hot propellant gases and will last for approximately 20 shots or 12-14 hours, whichever comes first.

These weapons have the following features:

• Extended barrel with embedded O-ring as well as support thread for a silencer;
• Adjustable trigger;
• Adjustable Micrometer sight.

In order to meet requirements with all atmospheric conditions, the TACTICAL has also been subjected to extreme tests:

• Tests with extreme temperatures +59°C/-32°C;
• Saline mist test;
• Sand, dust and sludge test;
• Surf simulation;
• Harshest drop tests;
• Accuracy and highest precision.

The USP Tactical is an enhanced version of the USP45 designed for users who need the features found on the Mark 23, but in a smaller and more affordable pistol. The USP45 Tactical pistol approaches the precision found on the Mark 23 by adding an extended threaded barrel with rubber O-ring, adjustable trigger, and adjustable target-type sights to the USP .45 ACP.