Since Arlo is a convicted felon on house arrest having the rifles, and any other guns in the same house he is living in would be a parole violation and get him sent back to jail.
Raylan fires one too many rounds from his pistol than is possible if he is using a Glock 21 in 45 ACP.
Outside Raylan's father's house, the viewer see nearly bare, scrub brush covered mountains in the background, which are not found in Kentucky or anywhere east of the Mississippi River. The mountains of Kentucky and elsewhere in the east are universally green and tree-covered.