Specifications

TM 05539-IN
a
WARNING SUMMARY
This warning summary contains general safety warnings and hazardous materials warnings that must be
understood and applied during operation and maintenance of this equipment. Failure to observe these pre-
cautions could result in serious injury or death to personnel.
WARNING
Use only authorized ammunition manufactured to U.S. or North Atlantic Treaty Organization
(NATO) specifications.
WARNING
Always assume every weapon is loaded until it is determined through visual and physical inspection
that it is not. Procedures for clearing/unloading the weapon are outlined in TM 05539-OR_. Failure to
follow this warning may cause injury or death to personnel.
WARNING
The firing pin is under spring tension. Release it slowly to prevent injury to personnel.
WARNING
DO NOT remove or adjust sear engagement screw, overtravel screw or trigger adjustment screw in
trigger housing. The only authorized adjustment is to the fine tune adjustment screw (weight).
WARNING
DO NOT interchange bolt body assemblies from one M40A3/A5 Sniper Rifle to another M40A3/A5
Sniper Rifle. This can cause a malfunction to the weapon. Failure to follow this warning my cause
injury or death to personnel.
WARNING
After unloading the weapon, and with the bolt locked to the rear, visually and physically check the
chamber for ammunition. Failure to follow this warning may cause injury or death to personnel from
negligent discharge.