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UNIVERSAL SIGHT MOUNTING FIXTURE & COMPONENTS Reviews & Ratings

The Foster Scope Mounting Jig fills the exacting requirements of the most particular gunsmith. Will handle virtually all bolt action, lever action and pump guns! You have only to spoil one good gun with a faulty job and you've spent the price of the jig. We have sold a great number of these to gunsmiths during the recent years. The universal comment when we meet scope jig buyers later is 'I don't know how I ever did business without it. Would rather almost do without my right arm than lose it now!'

The Forster Universal Sight Mounting Fixture was designed to fill the exacting requirements encountered in drilling and tapping holes for the mounting of scope mounts, receiver sights, shotgun beads, etc. The Fixture will handle virtually all bolt action, lever action and pump action guns including the Savage 99, Remington 760, etc.; in fact, any single barrel gun as long as the barrel can be laid into the 'V' blocks of the Fixture. Tubular magazine guns are done in the same manner by first removing the magazine tube.

The Fixture will locate the holes to a standard, predetermined spacing built into the over-arm, or to any other spacing by sliding the over-arm in either direction. 'Run out' of the drill is eliminated as it is guided through a hardened and ground drill bushing. Tapping is done through another bushing of the correct tap size, and eliminates cocking of the tap which is a major cause of tap breakage and sloppy holes. The sliding over-arm has three holes with standard spacing of .500' and .860' between centers into which the interchangeable drill and tap guide-bushings fit. The over-arm is keyed and slides in a 'T' slot. It is always in true alignment with the exact center of the gun barrel.

The main body of the Fixture is cast aluminum. The two 'V' blocks are adjustable for height and made of hardened steel accurately ground on the 'V' as well as the shaft. Accuracy in every detail has been the first consideration!

It is truly a precision fixture that will save its cost over and over again while allowing you to do a really first class job on every gun that comes into your shop. SPEC: Approx. 20' (50.8cm) long. Comes complete with Drill
and Tap Bushing Set for 6-48. Other bushings sold below.

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1 Stars

Reviews Summary

Overall, the UNIVERSAL SIGHT MOUNTING FIXTURE & COMPONENTS receives positive feedback for its accuracy and ease of use, with many users stating it saves time and ensures precise mounting for scopes. Some customers, however, suggest improvements, like extending its length for better versatility, indicating areas for enhancement.

What Reviewers Are Saying

Product Effectiveness

85%

Numerous reviewers highlight the effectiveness of the fixture, noting its ability to ensure accurate and consistent placement of scope bases. Users appreciate that it simplifies the drilling and tapping process, making it an invaluable tool for firearm modifications.

Ease of Use

70%

Many customers comment on how easy the fixture is to use, with clear instructions leading to stellar results. This accessibility makes it suitable for both novices and experienced users, further enhancing its appeal.

Durability

50%

Reviewers often praise the fixture's robust build, comparing it to 'cast iron underwear' in terms of sturdiness. This durability suggests that the product is a long-term investment for those in need of reliable tools for firearm modifications.

Suggestions for Improvement

20%

Some feedback points out the need for additional length in the fixture to accommodate different types of front sights. This suggests that while the product is effective, there may be room for design enhancements to increase its versatility.

Value for Money

60%

While some users mention the fixture's higher price point, many believe it is worth the investment due to its performance and ease of use. This indicates that customers view the overall value as strong relative to the benefits gained.

Customer Photos & Videos

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Not used yet

I received everything in a timely manner, but I haven’t had the opportunity to use anything I received yet. From all of videos I saw I’m sure this product will work fine.

by DAVID WELLS on November 20, 2025

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should be longer by 10 inches to do front sights thats the reason i own two mounted on some aluminum angle stock

by ROBERT WHITE on April 27, 2025

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Forster Universal Sight Mounting Fixture

Howdy, Excellent Piece of Equipment. Brownells said they had it in stock & they DID! Since Dec. 2023 - another supplier claimed it was in inventory, (Holiday Special which was really only $40 less) only to give me a Oct. 23, 2024 expected delivery date. Thanks Brownells.

by GRANT CORRIGAN on March 24, 2024

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Great Tool

Must have tool if you want to drill and tap receivers for mounting scopes. I mean sure, you can do it without, but what a pain.

by CHRISTOPHER LEWIS on October 10, 2023

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Must have tool for non-factory scope mounts

This is a must-have tool to ensure consistent and correct placement of scope bases where holes must be drilled in the receiver or barrel (non-factory holes). This is especially important when mounting vintage scopes that do not have a constantly centered reticle design, where accurate placement is paramount. I've used this fixture half a dozen times and the results are stellar. I wouldn't think of drilling and tapping a scope base now without it. Well worth the investment!

by ORRIN TALLMAN on September 20, 2023

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Using This Dandy Jig for Decades

The head is set for spaced scope base holes. set it correctly with the hardened bushings in the press or mill, drill with a stop, done. Change for tap bushing, set with a center in the drill head, thread the hole correctly, do not forget to break the cut curf material every 1/4 or 1/2 turn.

Buy Once,Cry Once

The Forster is a bit spendy,but it is worth every penny! Easy to use, very accurate, saves set up time. Now that I have a Forster and have used it on several different firearms with excellent results, I'm sorry I hesitated to buy it ....

Excellent product

Very accurate. Easy to use. Excellent product

A must for any gunsmith

The fixture is great for drilling holes for scope base mounting! It can be set up for any rifle, within reason.

A must for scop mounts.

I have use this a few times now with excellent results. Mounts line up with perfect accuracy. Very easy to use with a hand drill. Bushings are great for drilling and taps.