Argos – Barnstaple, Roundswell (in Sainsbury’s) – Opening Hours & Store Details Argos is conveniently positioned in Roundswell Retail Park on Gratton Way, approximately a 1.34 mile driving distance south-west of the centre of Barnstaple, in Roundswell (aside A3125 and A39). This store is an excellent addition to the local businesses of Fremington, Tawstock, Bickington, Barnstaple, Rumsam and Roundswell. This page will provide you with all the information you need about Argos Barnstaple, Roundswell (in Sainsbury’s), including the hours of opening, address details, customer feedback and additional essential details.