Start with a Alexander Arms AR-15 Upper Assembly in .50 Beowulf.
Probably run you $750ish depending where you buy the upper from.
"Some People Are Like Slinkies. They're Not Really Good For Anything, But They Bring a Smile To Your Face When Pushed Down The Stairs."
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.