TSA Approved MonoShaft™ Gun Case Lock

The Cedar Mill Fine Firearms MonoShaft™ Gun Case Lock is a TSA-compliant firearm case lock engineered specifically for checked baggage firearms transport under 49 CFR §1540.111, the federal regulation governing civilian firearms carriage on commercial aircraft. Why MonoShaft™ Design Matters Standard padlocks use a U-shackle: a curved metal bar that can be cut with bolt cutters. The MonoShaft™ construction eliminates the exposed shackle entirely — the locking mechanism is a single integrated shaft body with no external loop to compromise. This directly addresses the most common point of attack on conventional gun case locks and provides meaningful tamper resistance in checked baggage handling environments. TSA Compliance at a Glance Federal law (49 CFR §1540.111) requires that unloaded firearms in checked baggage be locked in a hard-sided container. The airline must verify the case is locked, but only the passenger — not TSA — may hold the key. This lock is built to that standard. It fi