Johnson Dynamics LLC

05/22/2026

FNX-45 with optic cut, raptor cut, and cobra cut

#45

04/14/2026

Chamber Flag (5-Pack) – Empty Chamber Indicator for Fi****ms

Ensure safety and compliance at the range with our high-visibility 3D Printed Chamber Flags, also known as Empty Chamber Indicators (ECIs). Sold in a convenient 5-pack, these essential safety devices clearly signal that a firearm is unloaded, providing peace of mind for shooters, range officers, and bystanders alike. The bright, attention-grabbing color ensures instant visibility from a distance, making it easy to confirm safe firearm status at a glance.

Key Features:

Includes 5 chamber flags per pack
Clearly indicates an unloaded firearm for enhanced safety
Durable 3D printed construction for long-lasting use
Bright color for high visibility and quick identification
Universal fit for most fi****ms
Lightweight and easy to insert/remove
Ideal for shooting ranges, training, and safe storage.

Always remove the chamber flag before charging or closing the bolt. Failure to do so may cause damage to the firearm or the flag.

12/17/2025

Vehicle Window Gun Rest – UHMW Polyethylene

Achieve a stable, reliable shooting platform from your vehicle with this Vehicle Window Gun Rest, precision-made from Ultra-High Molecular Weight (UHMW) Polyethylene. Designed to sit securely on a rolled-down vehicle window, this compact rest provides dependable support while protecting your firearm and vehicle.

Available at johnsondynamicsllc.com, Amazon, and eBay

12/15/2025

Weldable Picatinny Rail's are back in stock! 4.5 and 2.375 inch options available. On Amazon, and our website, johnsondynamicsllc.com.

08/20/2025

07/10/2025

07/09/2025

07/09/2025

07/07/2025

Steel 1913 Picatinny Rail Section – Weldable: 1018 Steel | 2.5″ Long | Made in the USA

Upgrade legacy fi****ms with modern capability using this Steel 1913 Picatinny Rail Section. Precision-machined from durable 1018 steel, this weldable rail section gives older fi****ms a solid mounting platform for today’s optics, lights, and other 1913-compatible accessories.

Product Features:

Weldable 1018 Steel Construction: Built to last and designed for permanent installation on older fi****ms without existing mounting options.

M-LOK-Compatible Dimensions: Measures 2.5″ long, .830″ wide, and .430″ thick—the same footprint as a standard M-LOK rail section.

Retrofit Older Fi****ms: Ideal for custom builds or modernizing vintage weapons by adding the ability to attach 1913 Picatinny-mounted accessories.

Solid, Permanent Mounting: Weld directly onto your firearm for a rock-solid, permanent upgrade.

Made in the USA: Proudly manufactured with American craftsmanship and precision.

Precision-machined from durable 1018 steel, gives older fi****ms a solid mounting platform for today’s optics, lights, and other 1913-compatible accessories.

07/05/2025

Weldable Steel 1913 Picatinny Rail Section

This is for older model fi****ms that don't use rails, allowing you to have the option of adding modern day 1913 mounted attachments where you want them.

This version and an M-LOK version will be available soon


****ms

06/17/2025

Took it like a champ 💪