Forster Rimless Headspace Gage FIELD length for 300 Blackout HG0300F. For instance unsupported brass fired in a rifle action with excessive headspace can rupture allowing gas to blow rearward like rocket exhaust. Because your safety is on the line...

In stock
ShipAmount $6.99
RevType 2
Manufacturer Forster
Sku HG0300F
Identity 9469806027