What back sight mean?

What is the value of a Howard Miller Grandfather Clock 610-208? How do you clean a 9mm pistol? What does manual mean on a bb gun? What are facts about LeFever Arms 16 gauge shotguns? What is the manuf date of a springfield 1898 serial? What is the occupation name for a soap maker? How long does it take to charge a 18v battery for a black decker grasshog? What is the vaue of an western arms s 40924? Where can you find a left hammer for a Steven Model 235? Can you die if you get shot in the shoulder with a gun? Need a sight puller for model 1906 Winchester? What is the valvue of a Winchester model 77 with a left handed bolt? Where can you get a forearm for Winchester Model 21? What are facts about Savage Arms Stevens shotguns? What is the value of a ruger mini 30 in excellent condition? In what years did Marlin make the Crown Prince 22 rifle? When was the first 50 caliber used? What is the production date of colt combat commander serial number 01227? How do you disassemble jennings firearms? What bullet does an AR-15 shoot?