General Dynamics Griffin

The General Dynamics Griffin is a series of armoured fighting vehicles under development by General Dynamics Land Systems (GDLS) for the United States Army. The Griffin is a derivative of ASCOD family of AFVs, which was also designed by GDLS.
Platform.
Griffin - Technology Demonstrator (TD).
At AUSA 2016 annual meeting, General Dynamics unveiled 120mm Griffin Technology Demonstrator (TD) as a "conversation starter" of US Army Mobile Protected Firepower (MPF) program. MPF is a light tracked vehicle intended to provide support of large caliber direct fire for Infantry Brigade Combat Team. The chassis of Griffin I shown at AUSA is from British Scout SV program (now called Ajax), but it only has six road wheels. The welded aluminum turret is armed with 120mm XM360 lightweight gun which developed by the Army Research, Development and Engineering Center. The XM360 gun was developed as part of the canceled Future Combat Systems (FCS) program.
Griffin II.
Griffin II is offered under Army's Mobile Protected Firepower (MPF) program without any passenger capacity. It is incorporated with 105mm XM35 gun and redesigned chassis because of Army's requirement of caliber of MPF vehicle. The 105mm XM35 gun is originally developed for the Army's Armored Gun System canceled in 1996. In December 2018, General Dynamics Land Systems was awarded with a $335 million Section 804 Middle Tier Acquisition (MTA) rapid prototyping contract by US Army under which the former will deliver 12 MPF prototype vehicles. Also, the contract has a follow-on option of the Low Rate Initial Production option worth $968 million.
In April 2020, General Dynamics Land Systems presented one of the first units from its 12 prototype lot to the Secretary of the Army, Hon. Ryan D. McCarthy, and Vice Chief of Staff of Army General Joseph M. Martin, at its facility in Detroit. 
Griffin III.
Griffin III was first unveiled at the Association of the United States Army's 2018 Exposition in Huntsville, Alabama. It is being offered under Army's Next Generation Combat Vehicle (NGCV) program with six fully equipped infantry carrying option in the back. This version, while similar in weight to Griffin II, scales down the main gun from 120 mm to 50mm XM913 gun system.It is also equipped with the IMI Systems’ Iron Fist Active Protection System (APS) and AeroVironment’s Switchblade loitering munition system.