Heckler&Koch HK45 COMPACT TACTICAL - Manual (Page 20)

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HK45 & HK45 Compact
of the slide; the locking block portion of the barrel fits within the ejection
port, and the angled locking surfaces of the locking block are visible along
the bottom of the slide.
Figure 24
Relationship of recoil spring to barrel locking block inside of slide
2. Install the recoil/buffer spring assembly into the slide so that the front of the
recoil spring guide rod engages in the small hole (ARROW) provided in the
front of the slide (Figure 25).
Figure 25
3. Compress the recoil spring slightly and align the opposing angled locking
surfaces on the rear end of the recoil spring guide rod with those located on
the bottom of the barrel locking block.
4. Push the rear of the recoil/buffer spring assembly forward enough so that
the recoil spring retainer can be engaged on the shelf provided on the front
of the barrel locking block. (Figure 24 shows this relationship).
5. Check the position of the sear axle on the frame. Ensure that it does not
protrude from the right side of the frame.
6. Position the right hand slide release at a 45 degree angle and insert onto
the mounting surface of the frame. Rotate the right hand slide release
downwards (Figure 26).
7. Hold the slide in the non-firing hand with the thumb holding the rear end of
the recoil/buffer spring assembly in place on the slide.
SECTION 6
Figure 26
8. Hold the frame in the firing hand. Position the rear of the slide above the
front edge of the frame.
9. Slowly draw the slide back onto the frame so that the metal inserts in the
frame fit into the grooves on the inside of the slide.
Figure 27
10. Retract the slide to the point where the recess in the left side of the slide is
positioned over the hole where the axle of the slide release will go and hold
it there (Figure 27).
11. Insert the slide release from left to right into the frame until it is flush with
the side of the frame (Figure 28). Release the slide and allow it to return
forward.