K9 Vajra is a variant of South Korean K9 Thunder which are self- propelled guns. They are being made jointly by a South Korean company and India’s Larsen & Toubro (L&T) Limited. Among the 100 guns to be inducted, 10 guns are being brought from South Korea and the rest will be made by L&T near Pune. Vajra guns which are designed to suit the difficult Indian terrain can fire up to the range of 30 km.

BAE Systems M777 guns are ultra-lightweight howitzers which can be picked up by the helicopters and can be deployed in the high-altitude regions. Out of 145 guns to be inducted in batches, twenty-five M777 guns are being imported in fly-away condition and the balance 120 will be manufactured in India by Mahindra Defence.

Both the artillery guns have gone under a series of field trials in desert and hilly terrains. The complete consignment of the 155 MM calibre M777 ultra-light howitzer will be handed-over to the Army by mid-2021, as the delivery model is reported to be five guns per month.