BSA-produced No. 4 Mk II rifles represent the final chapter of British bolt-action service rifle production. The Mk II improvements - hinged butt plate and revised trigger group - addressed longstanding service complaints about the Mk I design. Type: Rifle Action: Bolt-Action Caliber: .303 British Capacity: 10 Year introduced: 1949, UK Weight: 91 oz Overall length: 44.5" Status: Discontinued Military use: Yes Intended use: Military, Collecting