Lowes offers Craftsman 10-oz Cordless Anti-Drip Rod Caulk Gun for $49 (reg $79) with free shipping.

Product Description:
The CRAFTSMAN® V20* Caulk and Adhesive Gun is ideal for a wide variety of sealing and gluing applications. This tool provides 550-lbs of dispensing force, allowing easy dispensing of any number of sealants, caulks and adhesives. The variable speed trigger offers greater control over dispensing speed and the anti-drip feature helps ensure a clean end point. The tool comes equipped with a hang hook for easy storage as well as a puncture tool for quick set-up. Expand your CRAFTSMAN® V20* system with the V20* Caulk and Adhesive Gun. Battery and charger sold separately.

• Variable speed dial allows for adjusting maximum and minimum application settings
• Anti-drip feature automatically prevents excess adhesive from dripping out by retracting the plunging rod
• Cartridge holder rotates 360 degrees allowing user optimal orientation when in use
• Hang hook allows for easy storage and transportation