The H&R Retro 723 Semi Automatic Rifle is a Late-80s 723-style carbine. Lightweight, K.I.S.S., and old-school cool. Use it as a base for your clone builds, or run it as is. H&R-marked M16A2 lower with an H&R M16A1 upper matches the transitional period between the M16A1-based carbines and the adoption of the M4. FeaturesCAR-Style StockA2-Style GripM16A1 Upper Receiver without Feed Ramps6-Position Carbine-Length Buffer TubeRifle Height Front Sight Base Gas Block