Breechblock closed, above; and open, below, of a Dan'l Fraser sidelever falling block action built by Joseph Smithson.


Tilting breechblock on a Martini action, hinged at the upper rear.


Hinged breechblock on a Snider action.


Rear view, above; breech face view, below, of the breechblock removed from a Winchester Model 1885 High Wall falling block action.


Crank-operated, cross-sliding breechblock of a Krupp 50mm mountain howitzer.


Breechblock - A block of steel, sliding in a mortised raceway, or rotating on a hingepin, that seals the breech of a cartridge firearm and through which the firing pin passes to detonate the primer.


The Hallowell & Co. Illustrated Firearms Dictionary is for informational purposes only. We do not necessarily offer the items described above for sale. Please click on any of the links below to see what we actually do have available for purchase.

American Shotguns      English Shotguns       European Shotguns      Double Rifles      Magazine Rifles        Single Shot Rifles      Combination Guns

Winchester      Colt      Smith & Wesson        Other Handguns          Antique Guns       New Arrivals             Custom Knives          Other Neat Stuff


Who We Are       How to Order      We want to buy your Gun(s)       Recommended Links     Historical Gallery         

Firearms Definitions, Abbreviations & Opinions     Store Photos     Magazine Articles          Home  

Hallowell & Co., Inc. PO Box 1445. Livingston, Montana  59047   USA   Tel: 406 222-4770    Fax: 406 222-4792     Email:

Hours: Tuesday - Saturday, 10 - 6.   (Mountain Time)   Our inventory is constantly changing. Please bookmark this site and return often.