The harness has a three-strap system each with a selected purpose. The Dynamic Bungee Strap provides flexibility for movement and breathing devoid of compromising the attract. The Static Buckle Strap tends to make for straightforward on/off although giving an anchor issue to attract the pistol versus. The Shoulder Strap https://www.primmaryarmshop.com/product-tag/fn-510-accessories/?per_page=9&layout=list