From the Vault: The Pedersen Device

This video details the complex restoration of a malfunctioning Pedersen Device. Key insights include diagnosing mechanical interference caused by incorrect replacement parts, specifically a spring that was too long and a mis-machined collar. The process involved precise engineering calculations, manual machining of a new collar, and successful live-fire testing to validate the repairs on a Springfield M1903 Mark I rifle.

This TFBTV video provides a field strip of the Remington R51 pistol, a re-release of the John Pedersen-designed Model 51. Despite previous less-than-ideal reviews of the R51, the video focuses on its unique hesitation-locked mechanism during disassembly. The content aims to show any wear on the internal components of the firearm. The description also thanks Ventura Munitions and Proxibid for their support and encourages viewers to check out TFBTV's Patreon page.

The Pedersen device, a rare WWI-era conversion, transformed the bolt-action 1903 Springfield into a semi-automatic rifle using a .30 caliber pistol cartridge. Designed by John Pedersen for trench warfare, it featured a 40-round magazine and a high rate of fire. The conversion process involved swapping the bolt for the device and was a top-secret project with few surviving examples.

This video details the installation of a Geissele MK8 Super Modular Rail on an AR-15. Key steps include using a Geissele Reaction Rod for upper receiver stability, proper torquing of the proprietary barrel nut, and secure installation of the gas block and tube. The rail is then slid on and secured with two cross-bolts using a T-handle hex wrench. Final steps involve muzzle device installation and a thorough inspection.

Proper ammunition storage is crucial for maintaining reliability and safety. Avoid storing ammo in cardboard boxes in damp environments, as this leads to moisture absorption and corrosion. Utilize airtight containers like ammo cans and control humidity with desiccants like silica gel packs. Heat accelerates gunpowder and primer degradation, so store ammo at stable room temperatures. Reloading primers are particularly vulnerable to moisture and require strict airtight storage.

This video demonstrates how to upgrade an AR-15's A2 furniture to Magpul components. It details the removal of the A2 grip using a Bondhus hex set and the installation of a Magpul MIAD grip with interchangeable backstraps for improved ergonomics. The process also covers preparing and installing the Magpul PRS stock, highlighting its adjustable features for cheek weld and length of pull.

This video explores the custom Remington 11-87 shotgun used as a prop in 'No Country for Old Men.' The film required a semi-automatic shotgun with a suppressor, a combination not readily available at the time. Prop master Larry Zanoff details how a non-functional, 'homemade' looking suppressor was custom-built for the 11-87, with the iconic silenced sound effect achieved entirely in post-production.