Accessories

The JMac Customs® 8" Arm Bar offers unparalleled adaptability, allowing for seamless conversion between a brace or stock. This configuration includes our Arm Bar Stabalizer, which attaches directly to the rear of the Arm Bar. This...

The JMac Customs™ 9" Arm Bar offers unparalleled adaptability, allowing for seamless conversion between a brace or stock. This configuration includes our Arm Bar Stabalizer, which attaches directly to the rear of the Arm Bar...

ARM BAR Blade StabilizerThe ARM BAR™ Stabilizer is JMAC’s purpose-built solution for enhanced one-handed control and support — engineered to integrate directly with the rear of our ARM BAR™ platform.Designed to replace the...

The CRSU Adjustable Cheek Riser is the perfect addition to your stock or brace. The CRSU is compatible with our Skeleton Stock, Triangle Stock, Arm Bar, as well as the original Russian/Bulgarian Triangle Stock using the optional adapter. The CRSU is...

With the rising demand for Plan B-style devices, JMac Customs is proud to introduce our own line of compatible mounts and adapters—engineered for precision, performance, and seamless integration. The 360HD is the latest evolution in JMac...

Replacement hardware for stock and stock accessories.   SS / TS Stock Bolt - Replacement for Skeleton stock, arm bar, skeleton tube, triangle stock FM-SM-1913 - 1913 Folding Mech Clamp and Bolt  SM - SM-4.5, SM-5.5, SM-SF replacement bolt

This page allows you to purchase the JMac Customs folding mechanism à la carte. To buy it as part of a complete build, please visit our Stock and Arm Bar pages. JMac Customs’™ best-selling 4140 heat treated steel folding mechanism with...

The RRD Recoil Reduction Device is a lightweight, multi-functional muzzle device engineered for unmatched firearm control. Its primary function is to drastically reduce recoil and muzzle rise by diverting gases 90° to the side and upward. During...

These pins are direct replacements for your 4.5mm and 5.5mm folding stock rifles. Designed for a precise fit with our MOD-1, MOD-2, and RSA-4.5 stock adapters, they ensure secure and reliable performance. Key Features: Direct replacement for factory 4...

Designed for a perfect fit and compatible with all of our Skeleton Stocks® (SS), Triangle Stocks® (TS), and Arm-Bar extensions, this cheek riser enhances comfort and allows you to align your sights and optics more efficiently. Made from durable...

The 360HD is the latest evolution in JMac Custom's™ Recoil Reduction Device™ (RRD) family of muzzle brakes, designed to meet the needs of serious shooters and professionals alike. Built with durability, ease of...

The 360HD is the latest evolution in JMac Custom's™ Recoil Reduction Device™ (RRD) family of muzzle brakes, designed to meet the needs of serious shooters and professionals alike. Built with durability, ease of...