A screw in priming valve for a pocket size flask, fits our #FLASK-POCKET and #FLASK-UNUM. The valve is used by removing the flask valve spring, locking the flask open and threading the priming valve into the spout hole. Use FFFFg black powder, for priming only. Best quality, made in the USA, this tiny valve dispenses three grains volume of priming powder, each time the nozzle is pressed into your rifle or musket's flash pan.

Same day shipment, when you click ADD TO CART and complete shopping cart check out. Inspect the item, return it for same day refund if not delighted. You will be pleased with your choice. You pay postage, your only risk.