Oshkosh (NYSE:OSK) makes specialty vehicles for a variety of applications, and its defense segment accounts for almost half its revenue. With a market cap of $4 billion, the company is also competing for contracts against foes with much greater resources, such as General Dynamics (NYSE:GD) ($30 billion) and Lockheed Martin (NYSE:LMT) ($40 billion).

Oshkosh may not garner the headlines of some of its closest rivals, but the chart below shows what investors have been missing over the past five years.

OSK Chart

OSK data by YCharts

Oshkosh has now developed TerraMax unmanned ground vehicle technology, something that could give it a leg up on the competition. TerraMax provides safer ways to deal with improvised explosive devices and to clear routes on the battlefield.

Motley Fool analysts Blake Bos and Rex Moore caught up with John Beck, chief unmanned systems engineer for the Oshkosh defense segment, at the recent Unmanned Systems 2013 conference in Washington, D.C. In this first of a three-part series, Beck explains the feedback he's getting from U.S. Marines using the technology.

Rex Moore has no position in any stocks mentioned. The Motley Fool owns shares of General Dynamics, Lockheed Martin, and Textron. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.