Sturm Ruger AC556K 223 REM blued with short barrel and side folding aftermarket stock.  One 20 round mag is included

Ruger AC 556 Full stock 223 REM Bayonet and 1 mag included 18 inch barrel  

Ruger AC556 223 18 inch Factory Machine gun by Ruger. The factory Ruger AC556 stock was replaced with a RARE and HIGHLY DESIRABLE SAGE/CQC stock with a Trijicon Reddot mounted on the forward rail.

Ruger AC556 .223 Beautiful factory machine gun with 18 inch barrel and side folding stock. Comes with factory box as well.

Ruger AC556 Blued 223 REM 13 inch Barrel Full Stock

Arsenal Inc. SAM7SF-84E - Side Folding Stock The SAM7SFArsenal, Inc., the premier American importer and manufacturer of semi-auto rifles, is proud to offer to American shooters the Bulgarian-made...

HERA "SFU" Side Folding Unit Adaptor T6 Adaptor for all platforms Hera USA, Side Folding Unit, Weapon Systems with AR15 style buffer tube assemblies. Fits AR15 reciever thread pattern. Will not...

KALASHNIKOV USA KS-12TSFS – 12GA TACTICAL SIDE FOLDING SHOTGUN Description  If you are looking for a perfect shotgun to improve your shooting skills and grace you