The most reliable and proven bipod design available in fixed and swivel configurations. All configurations also feature spring-loaded legs for rapid adjustment. Swivel configurations pivot independently from the upper stock mount, allowing fast but sturdy levelling on uneven ground. The tension knob on the swivel models can also be adjusted to resist pivotal motion. TAC models come with a picatinny adapter to suit rail mounting options, while the carbon fibre model features increased rigidity and reduced overall weight.