Bob Marvel 1911 Auto Sear & Hammer Jig

Name: Bob Marvel 1911 Auto Sear & Hammer Jig
Brand: Brownells
SKU: 080823000
Price: 139.99 USD
Availability: InStock

Overview

Designed for 1911 trigger work, this dual-purpose jig helps position both the sear and hammer for controlled stoning and consistent 90-degree cuts. It is intended for use with all styles of 1911 hammers and sears, and the combination jig/vise keeps the parts aligned at the proper height and relationship during the process. The result is a setup aimed at producing a clean-breaking, match-quality let-off without relying on guesswork. Made from hardened, anodized aluminum and supplied with instructions, it is a specialized bench tool for careful pistol work rather than a general-purpose shop fixture.

Why Hunters Choose the Brownells

Three-piece Dual-purpose

Jig supports both sear and

Combination Jig

Vise helps hold hammers at

Locks Sear

In proper relationship to the

Designed Guide

Stones for exact 90-degree cuts

Includes Instructions

For setup and use

Key Features

Three-piece, dual-purpose jig for 1911 hammer and sear work
Holds both sear and hammer in the correct relationship
Guides stones for exact 90° cuts
Combination jig/vise supports hammers at the correct height
Designed for use with a 6" x 1/2" x 1/2" stone
Hardened, anodized aluminum construction
Includes instructions

Best Used For

1911 pistol smiths needing a jig for consistent sear and hammer stoning setup
Users fitting or refining all styles of 1911 hammers and sears
Bench work where exact 90-degree cuts and controlled stone guidance are required
Gunsmiths wanting a combination jig/vise for holding parts at correct height
Shop users following included instructions for detailed 1911 trigger work

Specifications

Angle	90Adeg cuts
Compatibility	All styles of 1911 hammers and sears
Design	Three-piece, dual purpose jig
Height	2" (5cm)
Includes	Instructions
Length	Approx. 4" (10.1cm)
Material	Hardened, anodized aluminum
Purpose	Holds and guides hammers and sears for 1911 work
Stone Size	6" x A 1/2" x A 1/2"
Thickness	A 3/4" (19cm)
Type	Auto Sear & Hammer Jig

Pros

Three-piece dual-purpose jig supports both sear and hammer work in one tool.
Combination jig and vise helps hold hammers at the correct height.
Locks the sear in proper relationship to the hammer for guided cuts.
Designed to guide stones for exact 90-degree cuts on 1911 components.
Includes instructions for setup and use.
Hardened, anodized aluminum construction is specified in the product data.

Considerations & Trade-offs

Designed specifically for 1911 hammer and sear work, so it is not a general-purpose jig for other firearm platforms.
Requires a 6" x 1/2" x 1/2" stone, which adds a setup requirement if you do not already have the correct stone on hand.
The compact size is convenient, but it also means the jig is intended for bench use rather than high-volume shop throughput.
Includes instructions, but achieving the intended result still depends on careful setup and proper stoning technique.

Suggested Comparisons

1911 pistol trigger tuning tools
Gunsmithing jigs and fixtures
Hammer and sear stoning tools
Pistol maintenance and repair tools

Suggested Accessories

Honing stone
Bench vise
Gunsmithing tools
Cleaning mat

Frequently Asked Questions

What is this jig used for?

It is a three-piece, dual-purpose jig for stoning 1911 hammers and sears. The description says it helps produce exact 90-degree cuts and a clean-breaking, match-quality let-off.

Does it work with different 1911 hammer and sear styles?

Yes. The description says the guides stone over all styles of 1911 hammers and sears.

What stone size does it require?

It uses a 6" x 1/2" x 1/2" stone.

What material is the jig made from?

The listed specification is hardened, anodized aluminum.

Does it include instructions?

Yes. The product specifications say it includes instructions.