M16A4 Buttstock When it comes to working with iron sights the longer barrel and glued front sight gives an extended sight radius which makes it easier to shoot properly. Heatshields In Handguard – You can find heatshields on the inside from the handguard to safeguard the user throughout prolonged lengths https://knightsarmamentrail19379.anchor-blog.com/9809003/the-greatest-guide-to-knights-armament-m4-rail