The M16A2 Buttstock is about five/8" of an inch more time then the earlier models. Due to increased size it utilized a longer buttstock screw along with a spacer. The swivel is mounted closer into the buttplate. This buttstock is now utilized within the M16A4: Of course, I'm certain the https://colt-m16a1-for-sale91331.gynoblog.com/30662971/colt-combat-elite-commander-45-acp-for-dummies