Technical data

TM 9-1005-319-23&P 0021
0021-17
NOTE
Lower receivers without pivot pin detent may be used for all Air Force mission
requirements.
15. Install fabricated pivot pin installation tool (43) (WP 0030, Figure 4). Insert helical spring (17) and
pivot pin detent (18). Compress pivot pin detent in recess with punch and rotate tool. Remove punch.
4 3
1 6
1 v s 1 9 3
1 8
Figure 25. Installation of Pivot Pin.
WARNING
To avoid injury to eyes, use care when installing spring-loaded parts.
NOTE
Rounded end of pivot pin detent must be in groove of pivot pin when assembly is
complete.
16. Position pivot pin (16) and, removing fabricated pivot pin installation tool (43) while maintaining
pressure, slide pivot pin into hole. Rotate pivot pin to receive pivot pin detent (18).