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Heckler And Koch HK USP Compact Pistol Operators Manual

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    							11HK Universal Tactical Light and laser aimers to be
    mounted on the HK USP Compact without modification
    to the pistol.  
    NOTE
    Improperly designed or installed accessories
    may result in damage to the USP mounting
    grooves and/or the USP Compact pistol. Such
    damage is not covered under the limited
    lifetime warranty. Be certain to use only HK Au-
    thorized Accessories and follow installation
    and precautions carefully.
    At Heckler & Koch, form follows function. All HK pistols
    are designed and manufactured to meet the operational magazine lock-out device. 
    CAUTION
    All USP models will fire if the magazine is re-
    moved, a cartridge is in the chamber, and the
    trigger is pressed (with the control lever in the
    FIRE position if applicable).
    To reduce barrel wear, all USP Compacts have
    polygonal cold hammer-forged barrels. This feature not
    only ensures longer barrel life and easier bore cleaning,
    but produces a better gas seal behind the bullet for
    increased muzzle velocity.
    The HK USP Compact, like the large frame USP, is an
    extremely safe firearm, with no less than four safety
    features, some passive and some active in nature. 
    Simple to field strip and maintain, the USP Compact is
    a reliable and trouble-free pistol.  
    An abbreviated set of universal mounting grooves for
    installing accessories is molded in the polymer frame of
    the USP Compact. These grooves allow a variety of
    accessories and targeting devices, such as the Mark II 
    						
    							12Frame
    Extension Slide Release
    Bobbed
    Hammer Slide
    Serial Number
    Ambidextrous
    Magazine 
    Release LeverStandard Floor Plate
    Barrel 
    Locking 
    Block
    Rear Sight
    ExtractorControl 
    Lever Front Sight
    Trigger
    Universal Mounting 
    Grooves
    Trigger GuardSlide Release Axle
    Finger Recesses
    Figure 12B (above)
    Extended Floor Plate
    Ejection PortSECTION 2 NOMENCLATURE
    Figure 12A (below)
    Reference
    Line
    Frame
    Lanyard
    Loop 
    						
    							13
    SPECIFICATIONS
    USP45 Compact  USP40 Compact  USP357 Compact USP9 Compact _________________________________________________________________________________________________________________Caliber.45 ACP.40 S&W .357 SIG9mm x 19ParabellumOperating PrincipleShort recoil
    Action TypeModified Browning type, linkless
    _________________________________________________________________________________________________________________SightsFixed patridge style, adjustable for windage & elevation, standard 3-dot or optional tritium Total Length180 mm (7.09 in.) 173 mm (6.81 in.) 173 mm (6.81 in.) 173 mm (6.81 in.)
    Barrel Length96.4 mm (3.80 in.) 91 mm (3.58 in.) 91 mm (3.58 in.) 91 mm (3.58 in.)
    Sight Radius143 mm (5.63 in.) 136 mm (5.35 in.) 136 mm (5.35 in.) 136 mm (5.35 in.)
    Twist Length406 mm (15.98 in.) 378 mm (14.88 in.) 378 mm (14.88 in.) 250 mm (9.84 in.)
    _________________________________________________________________________________________________________________Height (Total)128.5 mm (5.06 in.)127mm (5.00 in.)127 mm (5.00 in.) 127 mm (5.00 in.)
    Width of Slide29 mm (1.14 in.) 29 mm (1.14 in.) 29 mm (1.14 in.) 29 mm (1.14 in.)
    Width of Frame 
    (includes safety lever)34 mm (1.34 in.)  34 mm (1.34 in.)  34 mm (1.34 in.) 34 mm (1.34 in.) 
    Weight (with empty magazine)795 grams (28.04 oz.) 780 grams (27.51 oz.) 780 grams (27.51 oz.)750 grams
    (26.46 oz.)
    Weight of Empty Magazine 87 grams (3.07 oz.) 83 grams (2.92 oz.) 83 grams (2.92 oz.) 83 grams (2.92
    oz.)
    Slide Force 
    (to retract slide)8.5 kg (18.74 pounds) 8.5 kg (18.74 pounds) 8.5 kg (18.74 pounds) 8.0 kg (17.64
    pounds)
    _________________________________________________________________________________________________________________Trigger Travel (rest to hammer release)Single-action5 mm (.20 in.) 5 mm (.20 in.) 5 mm (.20 in.) 5 mm (.20 in.)
    Double-action11.5 mm (.45 in.) 11.5 mm (.45 in.) 11.5 mm (.45 in.) 11.5 mm (.45 in.)
    Trigger Reach 
    (center of trigger to back of frame)Single-action67.5 mm (2.66 in.) 65 mm (2.56 in.) 65 mm (2.56 in.) 65 mm (2.56 in.)
    Double-action74.5 mm (2.93 in.) 72 mm (2.84 in.) 72 mm (2.84 in.) 72 mm (2.84 in.)
    Magazine Capacity 
    (no cartridge in chamber)8 cartridges 12 cartridges* 12 cartridges* 13 cartridges* 
    						
    							14
    5. Inspect chamber- inspect chamber for the pres-
    ence of a cartridge or empty case by:
    • Visually viewing chamber through open ejection
    port and;
    • Physically inserting finger into chamber through
    ejection port to check for the presence of a car-
    tridge or empty case.
    Remove any cartridges or empty cases from the cham-
    ber or from within the pistol.
    The HK USP Compact is now considered “Clear”.
    General - (Refer to page 12 for the location of the fea-
    tures described below)
    Heckler & Koch USP and USP Compacts are short
    recoil operated. They use a modified Browning style
    system, without a link, to lock and unlock the barrel.
    Upon firing, the pressure developed by the propellant
    gases forces the slide and barrel assembly to the rear.
    After moving approximately 3mm, the locking block will
    stop the rearward movement of the barrel. The barrel is
    pulled downward due to the engagement of the angled
    locking surfaces of the locking block with those located SECTION 3 FUNCTION AND OPERATION 
    WARNING
    Always clear the pistol before handling it.
    Clearing the Pistol  The HK USP Compact pistol is not
    considered “clear” or safe unless:
    1. The control lever (if applicable) is on “SAFE”  and; 
    2. The magazine is removed from the pistol and;
    3. The slide is locked to the rear and;
    4. The chamber is free of brass or ammunition
    To Clear the HK USP Compact:
    1.Make sure fingers are outside of the trigger
    guard and the pistol is pointed in a safe direc-
    tion at all times!
    2. Engage control lever (if applicable) -  press the
    safety lever upwards until the “S” aligns with the
    reference line located on the frame.
    3. Remove magazine- depress the magazine release
    lever and remove the magazine from the pistol.
    4. Open and lock slide- while pointing the pistol
    in a safe directionlock the slide open by pulling
    the slide rearward as you press the slide release
    upward. Watch for a cartridge or empty case to be
    ejected from the pistol. 
    						
    							15 on the end of the recoil spring guide rod. The locking
    block disengages from the slide and the slide continues
    rearward independently from the barrel. The extractor,
    located on the right side of the slide extracts the spent
    case. The ejector, positioned in the left side of the
    frame, rearward of the magazine well then ejects the
    fired cartridge case. The rearward moving slide then
    cocks the hammer, and compresses the recoil spring.
    Once fully to the rear, the compressed recoil spring
    pushes the slide forward, stripping the next cartridge
    from the magazine into the chamber. If the magazine is
    empty, the magazine follower lifts the slide release into
    position where it can stop the forward progress of the
    slide and holds the slide open. If a cartridge is present
    in the magazine, the slide will push the cartridge from
    the magazine and into the chamber.
    WARNING
    Do not rely on the slide position to determine if
    the magazine is empty. Always check visually
    and physically ensure the pistol is not loaded.During the last 3mm of forward movement, the slide
    forces the angled surfaces of the barrel locking block
    against opposing angled surfaces on the recoil spring
    guide rod. This action pivots the locking block on the
    barrel up into engagement with the ejection port on the
    slide. The breech is now locked closed and the next
    shot can be fired.
    CAUTION
    A pair of Universal Mounting Grooves located
    on the front of the USP Compact’s frame allows
    for a variety of accessories to be used with the
    pistol. Improperly designed or installed acces-
    sories may result in damage to the mounting
    grooves and/or the pistol. Such damage is not
    covered under warranty. Be certain to use only
    HK authorized accessories and follow installa-
    tion and precautions carefully. 
    						
    							16
    OPERATING CONTROLS & COMPONENTS
    WARNING
    The HK USP Compact incorporates single action
    and/or double-action modes of operation. Any-
    time the trigger is pulled with the control lever in
    the fire (horizontal) position and a cartridge in
    the chamber, the pistol will fire from either the
    hammer down or cocked positions.
    Double/Single-action modes -For Variants 1, 2, 3, 4,
    9, & 10 in the double-action mode, pulling the trigger
    will cock the hammer and immediately release it firing
    the first chambered cartridge. All subsequent cartridges
    will be fired in the single-action mode because the
    slide automatically recocks the hammer after each shot
    is fired. 
    In the double-action only mode, the hammer always 
    returns to the uncocked (forward) position after each
    shot. All shots are fired in the double-action mode.
    Magazine - USP Compact magazines are constructed
    of metal with polymer floor plates, followers, and locking
    plate pieces. Cartridges are positioned within the 
    magazine in a staggered arrangement but are fed intothe pistol from a single row under the feed lips. The 
    cartridges are visible through the numbered viewing
    holes located in the back of the magazine. For 
    maintenance and cleaning, USP Compact magazines
    can be easily disassembled.
    Control Lever - For Variants 1, 3, 5, & 9, this manually
    operated lever is located on the left side of the frame
    (for Variants 2, 4, 6, &10 the control lever is positioned
    on the right side of the frame) below the rear sight. This
    lever is operated with the firing thumb and can perform
    both functions of a safety lever and a decocking lever,
    depending on the parts installed. 
    Note: Not all variants
    have a control lever.
    Control lever as a safety lever -  On HK USP Com-
    pacts with the “SAFE” position (Variants 1, 2, 5, 6, 9, &
    10), the front of this lever is fully raised above horizontal
    so that the “S” on the lever itself aligns with the 
    reference line on the frame.  (See Figure 17A ) With
    this control lever engaged, the release of the hammer is
    blocked in the single-action mode of fire. In the double-
    action mode, the hammer will partially cock but will not
    release to fire the pistol. 
    						
    							17 Figure 17A
    To fire the pistol, the front of the control lever is moved
    down horizontally into the “FIRE” position.  In this posi-
    tion, the “F” on the lever aligns with the reference line
    located on the frame.  (See Figure 17B)  With the con-
    trol lever set on  “F”, the pistol will fire if the trigger is
    pulled and a cartridge is present in the chamber.
    Figure 17B
    Figure 17C  
    Control lever as a decocking lever -  On HK USP
    Compacts without the “SAFE” position (Variants 3 & 4),
    the front of the control lever cannot be raised above
    horizontal and the pistol will fire anytime the trigger is
    pulled with a cartridge in the chamber. The control lever
    only functions as a decocking lever to lower the cocked
    hammer into the double-action mode. The cocked ham-
    mer is lowered when the control lever is fully depressed
    by the operator (see Figure 17C). This lever is spring
    actuated and springs back up into the horizontal (fire)
    position when released. 
    “DECOCKING”
    the control
    lever with
    a down-
    ward 
    sweep 
    of the
    thumb Control
    lever in 
    SAFE 
    position
    Control
    lever in 
    FIRE 
    position 
    						
    							18 Control lever as a safety/decocking lever -  On USP
    Compact Variants 1 and 2, the control lever can be
    placed in the safe, fire, and decocking positions
    described earlier. A USP fitted with this control lever can
    be carried as a single action or double action pistol, with
    or without the safe position. The control lever also
    allows the cocked hammer to be decocked when the
    control lever is fully depressed. (See Figure 17C).
    WARNING
    The USP Compact should not be carried in the
    single action mode without the control lever in
    the safe position.
    Extractor - The extractor of the HK USP Compact pis-
    tol acts as a loaded chamber indicator. When a 
    cartridge is in the chamber, the red colored forward
    edge of the extractor protrudes approximately 1 mm
    from the slide and is visible to the operator. 
    Slide Release - This lever is located on the left side of
    the frame directly above the trigger. This lever is used
    to lock the slide open, to release the slide, and to 
    disassemble the pistol. 
    As a slide stop, it is lifted upward by the magazinefollower or the operators finger as the slide travels
    rearward during recoil or manual manipulation. The
    slide release engages in the recess located on the left
    side of the slide at it’s midpoint. The slide release is
    spring actuated and is held down out of engagement
    with the slide until required. The slide release will 
    automatically hold the slide open when the last shot is
    fired. As a disassembly lever, the slide release is
    removed from the left side of the frame when the slide
    is held partially rearward.
    Magazine Release Lever -This ambidextrous, spring
    actuated lever holds the magazine in place within the
    grip by engaging in the notch found on the front of the
    magazine housing.  
    Depressing this lever downward with the firing index fin-
    ger or thumb will allow the magazine, regardless of the
    number of cartridges inside, to drop free of the frame.
    The magazine release lever is shielded from accidental
    actuation by the design of the polymer frame and flared
    trigger guard surrounding it.
    Frame -  All sides of the polymer frame are textured to
    ensure a firm grip, even with wet hands or under condi-
    tions of rapid fire.   
    						
    							19 The trigger guard is slightly recurved and grooved to
    provide a firm grip when using two hands or gloves to
    fire the pistol.  The frame is a one-piece molded 
    component with metal inserts (locking insert and 
    guiding part) cast into the frame during production.
    The slide rides on these metal inserts during operation.
    The frame contains mounting grooves for accessory
    attachment and finger recesses located to the left and
    right of the magazine well for manual extraction of the
    magazine, if necessary. The serial number of the pistol
    is engraved in the metal insert incorporated into the
    front of the frame in front of the trigger guard, on the left
    side of the slide, and on the barrel locking block.
    Sights -  The USP Compact uses the
    proven 3-dot sighting arrangement. By
    aligning all three dots horizontally on
    the target, with the front sight dot 
    centered between the rear sight dots,
    the operator can quickly and easily en-
    gage the target with a high degree of
    accuracy (Figure 19). With the optional
    tritium sights installed, precise and
    rapid target engagements are possible
    under low light conditions as well.
    The rear sight can be adjusted for windage by drifting
    the sight to the left or to the right, depending on the 
    desired shot placement. Bullet impact on target will
    move in the same direction that the rear sight is
    moved. Be careful not to damage the slide finish when
    adjusting the rear sight. 
    Adjustments for elevation are accomplished by ex-
    changing the front sight with a higher or lower sight,
    available from HK. The height of the front sight is indi-
    cated on the underside. The front sight must be 
    removed by using a drift punch or an HK USP sight
    pusher. The accessory HK sight pusher can be used to
    install, remove, and adjust the front and rear sights on
    all USP and USP Compact pistols.
    To raise the bullet impact on target, a shorter front
    sight is installed. To lower the bullet impact on target, a
    taller front sight is installed. Installing the next higher or
    lower front sight will change the point-of-impact 2 inch-
    es at 25 meters, depending on the ammunition used.
    USP Compacts are function fired and zeroed at the
    factory at 25 meters, point-of-aim, point-of-impact. Your
    actual zero may vary depending on the ammunition
    used and/or your style of shooting.  Figure 19 
    						
    							SECTION 4  AMMUNITION
    WARNING
    Heckler & Koch specifically disclaims any respon-
    sibilities for any damage or injury that should occur
    because of, or as a result of, the use of faulty,
    remanufactured, or reloaded (hand loaded)
    ammunition, or of cartridges other than those for
    which the pistol was originally chambered for.
    The HK USP Compact is designed to fire quality,
    factory loaded ammunition loaded to SAAMI specifica-
    tions for use specifically in handguns. For use with
    ammunition with hard primers (i.e. some NATO spec.
    cartridges), a special hammer spring is available.
    The following guidelines should be considered when
    selecting the correct ammunition for your pistol.
    1. Be sure the ammunition you have chosen is 
    compatible with your pistol – proper caliber, cartridge,
    bullet weight, etc. Caliber markings on the USP
    Compact appear on the left side of the slide and on the
    barrel locking block, visible through the ejection port on
    the right side of the slide.
    202. Prior to loading the magazine and chamber, carefully
    inspect all cartridges for the following abnormalities:
    • Cracked, split, dirty or corroded cases
    • Improperly seated projectiles and/or primers
    • Damaged projectiles
    3. Do not attempt to fire a cartridge in which the projec-
    tile has been forced back into the case. Upon firing, this
    condition may result in increased chamber pressure
    above safe limits.
    4. Do not fire ammunition through the pistol that:
    • Is foreign and/or outdated military surplus  
    • Is assembled with corrosive primer and/or
    propellant
    • Is exposed to oil, grease, water, or direct sunlight.
    Remove contaminants if possible before use and
    cool down ammunition exposed to direct sunlight
    or heat.  (Exposure to sources of heat could raise
    the chamber pressure of the cartridge above safe
    limits.)
    • Is loaded specifically for use in submachine guns. 
    						
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