MIL-DTL-71186A
assembly by the firing pin retaining pin.
3.5.11.2.3 Firing pin protrusion. The firing pin protrusion shall be a maximum of 0.036
inches and a minimum 0.028 inches.
3.5.11.2.4 Firing pin plating workmanship. The chromium plating of the firing pin shall
be free of nodules, flaking, stripping, anode burns and evidence of etched base steel, except as
specified on the applicable drawing 8448503.
3.5.12 Charging handle retention. When the charging handle is placed in the forward
position it shall engage and lock securely in the upper receiver by the charging handle release.
3.5.13 Bolt assembly.
3.5.13.1 Bolt assembly motion. The bolt assembly shall move through its full range of
travel and lock in the battery position.
3.5.13.2 Bolt assembly retention. The bolt assembly shall be securely retained in the bolt
carrier by the bolt cam pin.
3.5.13.3 Extractor.
3.5.13.3.1 Extractor motion. The extractor shall move between its rest position (no
cartridge present) and its active position (cartridge present) without binding in the bolt.
3.5.13.3.2 Extractor action. The extractor shall be capable of engaging and extracting
cartridge cases from the barrel chamber when the weapon is function fired or manually operated.
3.5.13.3.3 Extractor retention. The extractor shall be securely retained in the bolt by the
extractor pin.
3.5.13.4 Ejector.
3.5.13.4.1 Ejector motion. The ejector shall move between its raised position (no
cartridge present) and its recessed position (cartridge present) without binding. Ejector
movement from its recessed position to its raised position shall be under spring action.
3.5.13.4.2 Ejector action. The ejector shall eject cartridge cases completely out of the
weapon when the weapon is function fired or manually operated.
3.5.13.4.3 Ejector retention. The ejector shall be securely retained in the bolt by the
ejector pin.
3.5.13.5 Cam pin.
3.5.13.5.1 Cam pin motion. The cam pin shall move through its full range of travel in the
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