Inside a One-of-a-Kind Prototype Submachine Gun with firearms expert Jonathan Ferguson
This review details the 'Sayer's SMG,' a unique prototype submachine gun from the Royal Armouries. It's a 'parts bin' build featuring Sterling SMG magazines and L1A1 SLR furniture. Notably, it employs a sophisticated gas-unlocked, roller-delayed blowback system, predating many modern designs, with a chamber-based gas piston.









