base pin

[′bās ‚pin]

(design engineering)

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References in periodicals archive ?

The Wrangler's unfluted cylinder rotates clockwise on a removable base pin and is charged using the loading gate on the right side of the frame.

WRANGLER: RUGER'S AFFORDABLE NEW SIX-SHOOTER IS A SINGLE-ACTION LOAD OF FUN

Shells are ejected by removing the cylinder base pin, pulling out the cylinder and pushing the shells out one at a time with the pin.

MISS LILLY'S REVOLVER: A HISTORY-RICH .38 RIMFIRE

To remove the cylinder, the frame-mounted cylinder base pin retaining screw is depressed and the nitre blued base pin is pulled forward and the loading gate opened.

UBERTI 'FRANK' 1875 SINGLE ACTION OUTLAW

Note, Brownells offers an extra power base pin latch.

Ruger Revolver Tuning: Ruger's single-action revolvers have a deserved reputation for reliability but benefit from gunsmith attention. Here's how to tune them up

He makes a base-pin puller so you can remove a tight base pin without marring it with a screwdriver trying to pry it out.

SAGA OF THE THE COLT SINGLE ACTION ARMY .45

The six-shot 1873 Cattleman II disassembles into frame, cylinder, cylinder base pin, and cylinder base pin sleeve.

Fresh take: Uberti's new 1873 Cattleman II offers an inventive approach to the old but relevant safety issue with the classic, traditional colt-type single-action mechanism

5 base pin will tighten your cylinder up and add the stylish good looks of Elmer Keith's easy-to-grab, hourglass shaped base-pin head.

RUGER SA SPRUCE-UP: EASY UPGRADES FOR AESTHETICS, SHOOTABILITY

Another solution was a longer base pin with two notches which allowed it to be pushed backwards, locked in place and then the hammer could not go forward and contact the primer of a cartridge.

CARRY' EM WITH SIX! TRADITIONS ENGRAVED SINGLE-ACTION SIXGUNS

Beware the base pin safety on replica Single Action Army revolvers!

Italian replica firearms

Third, and probably the most important, a locking screw has been added to the base pin. This screw engages a detent machined into the barrel to ensure the base pin does not back out under recoil.

Five-shot super magnums: Ruger's super Blackhawk single-action revolver is now offered in a distributor-exclusive, five-shot version chambered for the game-stopping .480 Ruger and .454 Gasull cartridges

This safety is just an extended cylinder base pin. When the spring-loaded base pin "button" on the dished-out portion of the frame in front of the cylinder is pushed in, it frees the cylinder base pin, which can then be pushed in until the rearward portion protrudes out just enough from the back of the frame to block the hammer from falling all the way and striking the primer.