Johnson Dynamics LLC

Johnson Dynamics LLC Mark series upper receivers, optic cuts, skeletonized uppers & BCG's, laser engraving, 3D printing

Introducing the .750″ Gas Block Pinning Jig, the essential tool for locking down low-profile gas blocks on .750″ barrels...
09/09/2026

Introducing the .750″ Gas Block Pinning Jig, the essential tool for locking down low-profile gas blocks on .750″ barrels.

🔸Rigid Alignment: Holds components firmly to eliminate off-center pin holes.

🔸Seamless Tapered-Pin Installs for guiding

​Two Material Options: Choose 1018 Steel or light-duty PLA depending on your workflow and budget.

Shop at ​johnsondynamicsllc.com (link in bio) or Amazon

​ GunTooling 2AEngineered

FNX-45 with optic cut, raptor cut, and cobra cut #45
05/22/2026

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

#45

Chamber Flag (5-Pack) – Empty Chamber Indicator for Fi****msEnsure safety and compliance at the range with our high-visi...
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 fi***rm 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 fi***rm status at a glance.

Key Features:

Includes 5 chamber flags per pack
Clearly indicates an unloaded fi***rm for enhanced safety
Durable 3D printed construction for long-lasting use
Bright color for high visibility and quick identification
Universal fit for most fi***rms
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 fi***rm or the flag.

Address

Boiling Springs, SC

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