The pistol grip and lever action Lube Shuttle grease guns are approximately $60~$70 delivered.
Compare to other name-brand grease guns, such as from Lincoln. The Lincoln pistol grip grease gun on Amazon is ~$40, but uses the traditional design with the follower-rod, handle, spring, etc.
Other brands and models show anywhere from ~$15 to $50 for traditional design grease guns.
The Lube Shuttle introduces a new design, which does away with the follower-rod and other components below the tube.
I viewed the Lube Shuttle grease guns as a +$30 premium over traditional design options, and the screw-in grease tubes aren't much more than traditional tubes, although the variety is limited, unless you fill your own tubes and buy the empty screw-in containers, as Mangler describes above using the bulk pump adapter. Note, the screw-in tubes are reusable, unlike most traditional grease tube refills.
$15 for TRC Paragon 3000 in screw-in tube from Lock-n-Lube when bought individually (buy two or more for free shipping, and discounts kick in when buying a box of 10 or more). Paragon 3000 is about the same price in a traditional tube.
Agreed, the Lube Shuttle model that is an electric grease gun is expensive, but a battery-powered grease gun from any company is going to be expensive. Lincoln makes one for ~$330, and it uses the traditional design with follower-rod.
Linked below is an image of the pistol grip Lube Shuttle with Lock-n-Lube attached (plus swivel and NPT adapter), and a tube of Paragon 3000 grease in the screw-in tube.
