Legacy L1175 Mega Gun Variable Stroke Pistol style Grease Gun Deluxe combination filler nipple and air bleeder valve for purging unwanted air. Allows for 3-way loading: bulk, filler nipple or catridge 12-Inch flexible extension for hard to reach grease fittings Heavy-duty cast aluminum pump head for maximum durability and longer service life Heavy gauge knurled steel barrel for better grip and durability 4-Jaw coupler for better grip and durability. Compatible with Mega Lube system pumps. Ergonomic handle design