(M240/M240C/M240E1): Check barrel release (23) for cracks or distortion. Replace if cracked or distorted.
(M240/M240C/M240E1): Inspect barrel release latch (24) for breaks or cracks. Replace if damaged.
(M240B/M240D/M240G/M240N): Inspect barrel catch (33) and spring (34). Replace if cracked or distorted.
Inspect barrel adapter nut (25) for damaged threads or cracks. Replace if damaged.
(M240B/M240D/M240G/M240N): Inspect nut locking pin (26) for cracks or distortion. Replace if missing or damaged.
Repair front sight assembly (18) if damaged (WP 0010 00).
DIRECT SUPPORT MAINTENANCE OF BARREL ASSEMBLY M240/M240C, NSN 1005-01-044-1026, PN 11825985; M240B, NSN N/A, PN 12976817; M240D/M240G/M240N, NSN 1005-01-408-5897, PN 12976818; M240E1, NSN 1005-01-251-9701, PN 12597035 (cont)_
Repair carrying handle assembly (27) if damaged (WP 0025 00).
Clamp in gas port area only.
Place barrel (12) in vise (13) with protective jaws (14) above gas regulator area (15) with gas regulator pointed down.
Place a block of wood (21) as shown to steady barrel (12).
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