it was not a sinclair part, it was aftermarket...Check Brownells. Seems like they have a lot of Sinclair stuff.
Jeff, it was Field And Cave Outfitters that used to make those, along with other very well designed and made items. Unfortunately, they've ceased production of the shooting gear.Does anyone know if these are still available.Nearing 80 with recent double hernia surgery I have been advised to cut weight.
If we lived a bit closer it would have been done before you asked. Cost ya' 2 blueberry muffins......My brother in law who is a retired millwright and machinist has volunteered to make me one. He was here last week taking measurements.