THE BEST SIDE OF COLT M4 TROOPER 5.56MM 16"

For concentrate on acquisition, the rifle is provided by having an A2 entrance sight and also a Magpul MBUS rear sight, ensuring quick and precise sight alignment.+1 the Troy MLOKs get the job done very well if you don't want to tug the gasoline block and substitute the barrel nut. If you're good with replacing the barrel nut then sky's the limit,