Why buy one when you can get two of these already built tacti-cool prepper rifles!  These two are twins that are outfitted for what you need.
 
- Satern/Liberty 16" 5.56 NATO Barrel, Medium Contour Carbine length 1-7 twist 6 Groove
- Aluminum Alloy 12-inch Free float handguard allowing for the attachment of tactical accessories such as bipods, grips, and sights. (6 rows of M-LOK mounting surface)
- Mil-Spec M4 Carbine / USGI Polymer Collapsible Rifle Stock
- Bushnell 1-4X24 Riflescope With scope mount