We traded in his Beretta M9 with about 900 rounds through it for $375 credit towards a new Rock River Arms 5.56mm AR. I don't know the exact specs, but it had a chrome moly barrel, the adjustable M4 type stock, and a weaver rail at the top and no rear sight. The AR was $829. I thought we got a pretty good deal considering we bought his M9 for $420+Tax New. It looks like the bottom one without the quad rail handguard. What do you guys think?