Figure 3-2.--M16A2E3 service rifle, 5.56 mm.
The trigger guard adapts easily for use in winter
operations. A spring-loaded retaining pin is depressed
so the trigger guard swings down along the pistol grip,
allowing ready access to the trigger when cold weather
mittens are being worn.
Figure 3-3.--Fiber glass handguard.
Figure 3-4.--Attaching "clothespin" bipod to M16 rifle.