This iron flash guard protects the shooter next to you from overspray vented from your flash hole. This flash guard is shaped with a long arm to provide two contact points. Reshape, or alter as needed. This protection is required at most-re-enactments, where flint shooters may stand and fire volleys shoulder-to-shoulder.
.055" steel, it may be bent with hand tools to fit many different locks. Predrilled with a .21" diameter to fit under an outside mounted frizzen screw. Use this nice flash guard on your flint musket, larger rifle, or fowler lock, such as a trade musket lock. This is marked with the British "Crown" mark over the letters "GR" for "Georgius Rex" (King George), which is ideal for your Brown Bess, commonly seen with a Grice, Stowe, or Tower lock plate.
Also available unmarked or with a "fleur-de-lis" cartouche for French muskets.