Umarex's very affordable Ruger MkIV - is it any good?
49:29
"The World's Most Powerful Air Pistol" ... actually, it likely was
7:52
Markpoint - verses - Mark IV Pellet Pistols (Detailed Comparison & Review) PART 1.
4:35
Ruger MARK IV 4,5mm Stainless 5.8413
37:56
Tuning up a Black Ops Langley Sniper
12:54
Head to head challenge, Umarex Ruger MK4 Vs Umarex Browning Buckmark. Budget springer shootout!
18:48
Stinger Ares CP2
45:21
Webley's Premier MK II - much better than we remember?
7:29