Building a rifle that can put up with the stresses of regular tactical assignment can sometimes be a difficult task. You need to account for a variety of factors and it is important that you ensure it can put up with all the elements you might encounter. When the going gets tough, you want to ensure a smooth cycling process and unwavering performance. If this is what you need, the PWS Direct Impingement BCG For AR-15 / M4 Rifles may be just what you need to improve performance.
Machined from tool steel and then treated with an isonited QPQ coating for hardness and corrosion resistance, this bolt carrier group is ready to perform. PWS made this option with increased mass to extend dwell time and delay unlock. This results in reduced chamber pressure and makes for a much easier extraction with each shot. Furthermore, they built it to have fewer points of contact, which reduces friction and keeps debris from mucking up the works.
If you want a bolt carrier group that will really provide for smooth functioning under any conditions, this might be the option for you.