Description
.750″ Gas Block Pinning Jig – 1018 Steel
Designed for machinists and gunsmiths who want a rigid, reusable alignment fixture, this .750″ gas block pinning jig is manufactured from 1018 steel for increased durability and rigidity.
The jig is designed to help maintain alignment between a compatible .750″ low-profile gas block and barrel during machining and provides a guided setup for drilling in preparation for tapered-pin installation.
Key Features
- 1018 Steel Construction – Made from 1018 steel for a rigid, durable machining fixture.
- .750″ Compatibility – Designed for compatible .750″ low-profile gas blocks and .750″ diameter barrels.
- Alignment Fixture – Helps maintain consistent gas block and barrel alignment during machining.
- Guided Drilling – Provides a controlled setup for drilling the gas block and barrel together.
- Tapered-Pin Preparation – Designed to assist with preparation for tapered retaining-pin installation.
- Reusable Shop Tool – Suitable for repeated use in a machining or gunsmithing environment.
- Additional Upper-Hole Feature – Includes an upper-hole feature for compatible gas blocks and certain adjustable-gas modifications.
Compatibility
Designed for compatible .750″ diameter barrels and .750″ low-profile gas blocks. Gas block dimensions, configurations, and hole locations can vary between manufacturers.
Verify the dimensions of your specific gas block and barrel before use.
Specifications
- Material: 1018 Steel
- Length: 2″
- Width: 1 3/16″
- Height: 1 15/16″
- Designed for: Compatible .750″ gas blocks and .750″ diameter barrels
What’s Included
- 1 × 1018 Steel .750″ Gas Block Pinning Jig
Gas blocks, barrels, drill bits, pins, and other components are not included unless specifically stated.
Important
This listing is for the machining and alignment jig only. Proper tooling, measurements, machining practices, and applicable manufacturer specifications are required for use. The buyer is responsible for determining compatibility and complying with all applicable laws.

















