7 Locked-Breech, Rotary-Barrel Pistols From Beretta & Grand Power
Browning 1911-380 ACP Pistol Black Label Compact 8 Round Locked Breech, Black - 051905492 | Palmetto State Armory
File:Gas operated breech with locking rollers (de).svg - Wikimedia Commons
Would have been good competition to Savage 1907 or 1915 models. RIEFGRABER .32 LOCKED BREECH AUTO PISTOL patented in 1907 by Joseph J. Riefgraber. Only about …
Locked breech - Wikipedia
Locked Breech & Blowback Overview in Handguns - YouTube