110Defender

One solution I'm thinking might work is a correctly sized recoil spring plug with an end hole, like on a 1911. A modified version of one of these: http://shopwilsoncombat.com/Replacement-Plug-Full-Length-Guide-Rod/productinfo/25P/

Non capture guide rod for Carry and Compact models.

Does anyone know where I can find a non capture guide rod for a Sig P320 Compact? I see GGI make a fat rod for the full size version, but have drawn a blank trying to find anything for the midsize Compact. Thanks.