TM 9-1005-237-23&P
1-7. DIFFERENCES BETWEEN MODELS. (cont)
a. The M6 Bayonet-knife is used on the 7.62-mm M14 rifle series. The M7
Bayonet-knife is used on the 5.56-mm M16 rifle series and the M4 Carbine. The
two models cannot be interchanged. The M9 Multipurpose Bayonet System is used
on the M16 rifle series and the M4 Carbine. The M9 cannot be interchanged with
the M6. The M9 is a replacement for some M7 Bayonet-knives.
b. The predominant physical difference between the M6 and M7 is the lock-
release levers. On the M6 Bayonet-knife the lock-release lever is a single lever
located on the bottom of the grip at the rear of the blade guard. On the M7 and
M9 Bayonet-knives there are left- and right-hand lock-reledse levers at the rear
of the bayonet. The M9 is longer and wider (blade is over 7 inches long and 1.4
inches wide) and heavier than either the M6 or M7.
c. Interchangeability of parts is limited to the grip screws on the M6 and M7.
The lock-release levers and springs are common for the M7 and M9.
d. The M9 Multipurpose Bayonet System scabbard consists of four major parts:
the scabbard body, wire cutter plate, attaching assembly lead bearing end, and
attaching assembly scabbard end. The M10 Bayonet-knife Scabbard is a single
piece.
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