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Glock Sight In Tool

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  • Image 1
  • First, remove your existing front sight blade. Press fit the SIT into the slide and carefully turn it upside down on your benchtop. The slide should be propped up on the SIT.
  • With the slide propped up on the SIT, gently screw in the provided set screw. The nylon sight blade is threaded, but the material will not withstand excessive torque on the screw. The threads are usually good for one install and removal.
  • The SIT is overheight at approximately .265", and will cause your pistol to shoot low. Reduce the height of the blade to bring your group higher. About .007" of blade height equates to approximately 1" of elevation at 25 yards.
  • The nylon material is quite slippery, and does not file easily. However, it responds well to sandpaper, and a strip of 220 grit is included with your SIT kit. Back the strip of sandpaper with something rigid - in these photos I used a file, but a 1911 bushing wrench or any other flat object will do.
  • Sand carefully and try to keep the top of the blade level. After some adjustment, load your pistol and shoot another test group of 3-5 rounds. Unload your pistol, and sand some more until you get your group where you like.
  • The SIT sanded to height.
  • Once your group is printing where you like, unload and disassemble your pistol. You can then remove the SIT to measure its height. Use a Glock sight tool to unscrew the hex screw from the SIT.
  • In this example, the blade measured .238", so the closest blade height to provide a similar point of impact would be a .235" blade. If the number is between the available sight heights, you will need to do a little math to see what you want. Example: your SIT measures .243" and your gun prints dead on at 25 yards. If you are using our sights, you have a choice between .235" and .250". If you choose a .235", it is .008" shorter than the SIT, and will raise your group about 1" at 25 yards. If you choose the .250", it is .007" taller than the SIT, and will lower your group about 1" at 25 yards. A suggestion is to pick the next lower blade height. It is generally better to print a touch higher and be able to observe your impacts than to have the gun print low below your line of sight.
Price:
$9.95
SKU:
0502-SIT
Rating:
( 1 product review )

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Product Description

The Glock Sight In Tool (SIT) is a single use nylon sight blade that can be installed on all models of Glock pistols. This tool temporarily replaces the front sight blade for sight in purposes. Install the tool, shoot a test target, and file/sand the overheight blade down to increase the elevation of the group. Once you have filed the blade to the height that gives you the desired point of impact, remove it and measure its height. You can then determine the proper height front sight to purchase for your particular pistol. Each kit sold will include ONE of the sight blades and ONE set screw. Sandpaper is also included for convenience.

The product photo gallery includes step by step instructions on how to install and use the SIT.

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Product Reviews

  1. Glock front sight - sightin tool

    Posted by Tom R on 9th Jul 2011

    I used your plastic front "try" sight on my Glock 35 - worked like a charm! This is brilliant. How many posts have I read on various forums with folks trying to figure out what sight height to order for their pistol? Well, with a Glock and this tool it's just too easy. Installation was simple and the directions on your website removed any of the guess work with that. I went to the range with a decent bastard file in hand. Shot a group, took a couple licks with the file. Shot another group and a bit more filing, a couple groups more to verify and Done! People were watching - trying to figure out what the heck I was up to, but they could see the group and then my monkeying around and then the group - almost ended up with a little cheering section. After shooting in, I dismantled the sight and measured with a dial caliper. I ended up finding a front sight with a few thousandths of an inch of the dimension I'd filed to. Good to go - too cool.