This bundle pairs the Milwaukee 2441-20 M12 10 oz Caulk and Adhesive Gun with the Milwaukee M12 REDLITHIUM XC 4.0 Extended Capacity Battery Pack (48-11-2440) — giving you a powered cordless caulking tool and the extended-runtime battery to back it up. Model Number: 2441-20. A charger is not included; this bundle is designed for users already on the Milwaukee M12 platform with a compatible charger on hand.

The 2441-20 caulk gun is built for repetitive sealing and adhesive work where a manual gun slows you down or wears out your hand. With up to 400 lbs of expulsive force and a dispensing speed up to 28 inches per minute, it handles everyday construction sealants and heavier adhesive materials consistently — the kind of materials that fight back against a hand-powered trigger on stiff tubes. The variable-speed trigger and max-speed dial let you feather material out slowly for neat finish beads or open it up on long, straight runs where appearance is less critical. The 360-degree rotating collar keeps the cartridge positioned correctly when you are working around corners, vertical seams, and awkward angles without twisting your wrist.

Milwaukee also built in the practical details that matter once you have used one of these on a real job. The auto-reversing anti-drip function helps reduce ooze after trigger release, which keeps cleanup down and the finish line cleaner. A seal puncture tool is on the gun, and the adjustable rack doubles as a hang hook so you can set it aside cleanly on a ladder or scaffold without laying it in debris. The aluminum carriage, brushed motor, 16.13 in. length, and 4.2 lb weight keep it manageable for overhead and repeated use throughout the day.

The 48-11-2440 XC 4.0Ah battery is the right match for a tool that runs in sustained cycles through multiple cartridges. Milwaukee rates it at up to 2x more runtime, 20% more power, and 2x more recharges than standard M12 lithium-ion batteries. REDLINK Intelligence manages communication between the battery, tool, and charger to optimize performance and protect against overload and cell damage — exactly the protection you want when the gun is pushing stiff adhesive for an extended period. The pack is also built to perform below 0°F / -18°C, which matters for exterior sealing work, siding crews, and service techs working in unheated spaces. The wider XC base helps certain M12 tools stand upright more easily, and individual cell monitoring keeps output consistent through the charge cycle.

Who should buy this bundle? Contractors, remodelers, window and door installers, siding crews, bath and kitchen installers, maintenance teams, and serious DIY users who run multiple tubes on a regular basis and already own Milwaukee M12 tools and chargers. If hand strain, inconsistent beads, or cleanup are costing time, this bundle is the practical upgrade.

Milwaukee M12 Caulk & Adhesive Gun + XC 4.0Ah Battery — the Right Upgrade When Manual Guns Start Slowing You Down

This is a smart buy for anyone who runs enough caulk or adhesive that hand strain, uneven beads, or cleanup are costing time — paired with the battery that keeps the gun working through a full shift without begging for a swap.

• Who it's for: Remodelers, window and door installers, siding crews, maintenance techs, and serious DIY users who use multiple tubes on a regular basis and already own Milwaukee M12 tools and a charger.
• Why it stands out: The 400 lbs of force, variable speed control, rotating collar, and auto-reversing anti-drip are a real productivity package — and the XC 4.0Ah battery adds up to 2x more runtime, 20% more power, REDLINK protection, and cold-weather performance to back it up.
• Worth knowing: No charger is included. This bundle is built for existing M12 users. The XC 4.0Ah battery also works across all your other M12 tools, so it earns its keep well beyond the caulk gun. Optional conversion kits let you run 20 oz sausage packs or quart cartridges if you want more format flexibility later.

• What's included in this bundle? The Milwaukee 2441-20 M12 10 oz Caulk and Adhesive Gun (with 10 oz carriage and ladder hook) and the Milwaukee M12 REDLITHIUM XC 4.0Ah Battery Pack (48-11-2440). A charger is not included.
• Is a charger included? No. This bundle is designed for users already on the Milwaukee M12 platform with a compatible charger on hand. Any Milwaukee M12 charger will charge the included XC 4.0Ah battery.
• Is this a manual caulking gun or a powered tool? It is a battery-powered cordless caulk and adhesive gun that runs on the Milwaukee M12 platform.
• What size material container does it use out of the box? This version is configured for 10 oz cartridge-style containers. Optional conversion kits are available for 20 oz sausage packs and quart cartridges.
• How much more runtime does the XC 4.0Ah battery provide? Milwaukee rates it at up to 2x more runtime and 20% more power than standard M12 lithium-ion batteries.
• Does the battery work in cold weather? Yes. The M12 REDLITHIUM XC 4.0Ah is rated for performance below 0°F / -18°C.
• Does this battery work with other M12 tools I already own? Yes. The 48-11-2440 is compatible with Milwaukee M12 cordless power tools across the platform.
• Can the gun be converted for other material formats? Yes. Milwaukee offers optional conversion kits for 20 oz sausage packs (48-08-0905) and quart cartridges (48-08-0910).
• What is the warranty on this bundle? The caulk gun carries a 5-year limited warranty. The XC 4.0Ah battery carries a 3-year limited warranty.