This flintlock pan primer is operated by a simple downward push into the pan of the lock. The 1 grain primer will dispense approximately 1 grain of FFFFg priming powder. The primer measures 3" long by 1/2" and is made from brass tubing. The 3 grain primer will dispense approximately 3 grains of FFFFg priming powder. The pan primers are manufacturered from brass with a stainless steel spring. A lanyard hole is provided in a nicely turned base. The priming mechanism is in a knurled, threaded housing that is removable for easy filling. Holds approximately 110 grains. Made in the USA by October Country, a manufacturer of muzzleloading supplies.