I-Armset yisethi yesibambo esetshenziswayo esetshenziswe kumshini wokwenza izitini we-Doubell Jumbo MK2, MK3 noma Hyperstat. Iqukethe isibambo sengalo sangaphakathi (sophatha othwala ipulangwe / isitampu sokuphakamisa), isibambo sesandla sangaphandle (sokwenyusa isibakaki / isikhunta ibhokisi lokuphakamisa) zombili zijikeleza ezungeze isibambo sesibambo esingu-32mm esiqhutshwa lula ngamabherethi amabili aboshiwe.
 
 Izingxenye zesethi yengalo zingalungiswa ngezinsimbi uma zonakalisiwe; kepha imvamisa iyinto yokugqoka ehamba kancane futhi uma ukugqoka sekubonwa nganoma yisiphi isikhathi, kuyalulekwa ukuthi kufakwe isethi iyonke. Imvamisa, le ngxenye ishintshwa ngokuyinhloko lapho imishini ishiywa ingamboziwe ukuze kugqame izakhi.