From the Vault: MAC-10 Submachinegun

This review details the RPB Semiauto M10 SAP, an open-bolt pistol developed as a cheaper alternative to the full-auto MAC-10. It highlights the firearm's simple blowback operation, unique RPB 'Cobra' logo, and the ATF's 1982 ruling that reclassified such designs, leading to production cessation. The video also contrasts the semi-auto trigger group with its full-auto counterpart, noting the ease of conversion.

This review showcases a modernized MAC-11 featuring a Lage Manufacturing upper receiver, significantly enhancing its accessory compatibility and aesthetics. The build boasts a high cyclic rate of 1200 RPM and demonstrates improved recoil control with heavier 147-grain ammunition. Reliability is highlighted, with the firearm performing exceptionally well after extensive use with minimal cleaning.

This video delves into the history and technical evolution of the MAC-10 submachine gun, from its design by Gordon Ingram to its various iterations and legal challenges. It highlights the transition from open-bolt to closed-bolt designs due to ATF regulations and showcases improvements made by Masterpiece Arms. The discussion also touches upon the MAC-10's presence in pop culture and its association with the illicit market.

This review details the SAP M10, a semi-automatic variant of the MAC-10, retaining its open-bolt design. It highlights the internal mechanism, including the disconnector and sear, crucial for semi-auto function. The video also touches upon the legal implications and ease of conversion to full-auto, which attracted law enforcement attention.

This video demonstrates the operation of an Ingram MAC-10 in .45 ACP, featuring a full-auto firing sequence with a suppressor. The instructor, exhibiting experienced authority, emphasizes safe firearm handling, including proper clearing procedures and suppressor installation. The demonstration highlights the weapon's rapid-fire capability and includes a clear check after firing.

This video details the 'Big MAC,' a unique 3D-printed MAC-10 variant chambered in .45 ACP, utilizing a closed-bolt Velocity V-MAC 45 upper. It highlights modern accessories like an EOTech sight, Holosun IR laser, and a Strike Industries folding brace, enhancing ergonomics and functionality. Range testing confirms its capability as a suppressor host and fun PDW project, though a faux suppressor caused a significant POI shift.

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.