PF Nickel Boron Super Match BCG worn out at 700 rounds.

[Lastrites]

When I reviewed how to test, it was to turn the bcg upside to see if the bolt falls out by its own weight, not by sitting it face down on a table.

*ARMY TM 9-1005-319-23&P
AIR FORCE TO 11W3-5-5-42
NAVY SW370-BU-MMI-010

Page 130

Figure 8. Checking for Fit of Bolt Assembly.
9. Check bolt assembly (4) for proper fit with bolt cam pin removed. Turn key and bolt carrier assembly
(5) and suspend so the bolt assembly is pointed down. The bolt assembly must not drop out. If weight
of bolt assembly allows it to drop out of key and bolt carrier assembly, replace bolt rings (see WP 0012)

http://www.transasianaxis.com/orig_site/...hange8.pdf