These Polyguns by 3M seem to be the most popular guns although the glue is a little more expensive than that used on the Charger Gun. These guns are durable, reliable and pretty inexpensive. The Polygun TC is a manual gun and uses the 2" glue sticks. The glue is pushed through the gun with your thumb. The Polygun TC with Quadtrack uses 8" sticks that are ribbed. A simple push on the palm grip pushes the glue through. It's your choice on which one to buy, they're both a good value. This gun uses 5/8" x 2" Glue Sticks.
These 3M™ Adhesive Applicator Polygun Series are engineered for 3M™ Jet-melt™ Adhesives.
They are lightweight and easy-to-use. The Polygun II applicator is a portable, self-contained, pneumatic applicator with an adhesive delivery rate of up to 7.5 pounds per hour. It is preferred for higher volume bonding needs. The Polygun TC applicator is rugged and reliable, compact and all electric, weighing just 10 ounces. It delivers 3.5 pounds of adhesive per hour. The Polygun LT applicator operates at just 129 degrees Celcius/ 265 degrees Farenheit. It is designed to apply low melting versions of 3M™ Jet-melt™ Adhesives.