Other mistake: As the team is chasing the thug's truck, they toss explosives at it. The charges miss on either side, but the truck is hit anyway. As the truck comes to a rest on its side you can see that there is no engine in it. Also, as the team stops at the truck, the head thugs come out from behind the truck and try to run. They didn't have enough time to get out, let alone get ready to run.
Other mistake: In the Cable van, Face plugs the red and black leads of his control onto the wires. As he moves the controller into camera view, the black lead comes off, so the interrupter shouldn't work, but does anyway.
Other mistake: The bridge jump scene in this episode is recycled from the season two episode "Labor Pains" where the van changes.
Answer: They never use an M14. The nearly always use a Ruger Mini 14, a totally different weapon.
stiiggy