Upgrading an AK74 - Arsenal SLR-104

Five years ago we unboxed and shot the Arsenal SLR-104 for the first time. Much has changed since then, but it remains one of our go-to AKs in the armory. So it's back, built out in four different configurations, and used in four shooting montages. 00:00 Intro 00:48 First Configuration 02:59 Second Configuration w/ ACOG 04:57 Third Configuration w/ Sig Tango 6T 07:04 Fourth Configuration w/ NODs 09:26 Analysis of each build 15:13 Should you buy an AK or AR?