RST RearSightTool Gen 3 (Mk IV) Universal Field Sight Pusher - 2 in 1: Front & Rear Sight installations + Compact Range Adjustment Tool from

I found it time consuming using this tool to remove standard factory steel sights from my Smith & Wesson M&P 2.0 slides. The slide doesn’t have a full flat surface like Glocks, therefore, you’re required to angle the slide to expose a larger flat surface area for the pusher plates to grab on to. Due to the slide contour, it was difficult to keep the plates even. Top of plate kept coming in further than the bottom requiring you to stop and readjust. While turning the bottom tightening knob, the threaded portion would move the slide forward and out if alignment with the sight. IMO, I wouldn’t expect to pay more than $45.00 for this tool. I’m sure you would get better performance, more stability out of a square metal block with sight pusher riding on a threaded rod inside of the unit. The tool eventually accomplished the task, however, it was quite clumsy doing it. This rating considers the price, ease of use and performance. I had difficulty interpreting the video instructions due to lack of clear, concise language.

I do not own or have ever tried any other sight adjustment tools, but I've carefully considered all options, watched a ton of videos and read a lot of reviews.Basically, you either get something for $40 (and the quality is dubious at best) on one side of the spectrum or a Wheeler for $160 or an MGW Sight Pro for $350.Smack in the middle for ~$100 you have an XL handgun sight tool or the RST (this one).The RST seemed to have a better fit and finish, does not require the use of any other tools, and can be used in the field.It comes with an instructions manual, links (QR codes) to YouTube videos with detailed instructions (again), and the tool is just incredibly straightforward to use. It took me 15-20 minutes to read the instructions, carefully assemble the tool, adjust the slide, and finally perform the sight adjustment on my HK VP9 SK.Exactly what I wanted -- and kudos to the inventors of the RST!

I purchased this tool hoping it would work on my Bersa Thunder 380, and it does, with a few caveats. While the blocks are almost small enough for the rear sight, neither one of the included ones fits the sight angle. I had to use the flat block and set it above the slide once it touched because it was just a hair too wide to fit in the dovetail groove. As a result, it tore up the rear sight block (didn't matter too much as I was replacing them with tritium sights), and because of the weird angle of pressure, it bent the end of the pusher bar and locked the block to the bar. Two of the clips that keep the block from rotating or falling off broke (I didn't bother with the third one), and I had to hold the block with my fingers to keep it from turning. Pushing the new rear sight in went fairly easily, and the front came out and in with no problems. I had to use pliers and a vise to get the block off the pusher bar after I was done.Otherwise, the tool was easy to use. I like that I can switch the magnetic spacer block and polymer inserts in and out without having to disassemble the whole thing. It holds the slide tight and square. And, it breaks down into a small package that will easily fit into a pocket or pistol case for adjustments at the range.Overall, I'm fairly satisfied with this tool. I would like the clips to be thicker. Even though they're designed to break before you damage the gun or the tool, they're just a little too flimsy when working with a stubborn slide. I don't anticipate changing out the sights on my Bersa again anytime soon, but if you are, I'd recommend getting the Glock 42/43 block also. It has a shallower angle that will probably fit better. I'd also use a penetrating lubricant, not CLP like I did.

The RST sight tool isn’t what I was hoping for with that price point...I use an MGW sight pusher for Glock pistols and needed one for the 1911 platform next. MGW has a pusher for 1911’s but they do not suggest using it for the front sight, as the company of this tool advertises and even stated to me personally prior to purchasing the tool...After a little bit of getting acquainted to this awkward tool, it pushed the rear sight in very well but it marred the front sight and the slide. (Yes, I was using the tool correctly) it just isn’t very good for front sights like they claim. I would NOT recommend this tool to anyone...The two stars are for that reason and the price tag is WAY to high for what you get... I will just be sticking with MGW from now on.

Used this to install night sights on my glock 30 and it did the job but you have to go easy taking multiple bites or it will start to ride up the sight and I could see this tool breaking if you aren't careful which is addressed in the instructions. That said, I still gave 5 stars because I feel it's a great portable happy medium for someone like me that only occasionally installs/adjusts sights and want something portable enough to throw in a range bag for adjustments at the range. The more rigid and expensive ones I've seen would not be practical for this. I wouldn't recommend using for professional or constant use but should suit most gun owners when used correctly. Make sure to carefully read instructions and do your part prepping sights for install by filing dovetails when needed to help the tool out and this should work fine.

I bought this tool to install suppressor height Trijicon sights on a Glock and it worked perfectly. It was the only tool that I could find at a reasonable price that was listed as being compatible with suppressor height sights. It does take a bit of setup and adjusting to get the slide and sight on the same plane for pushing when compared to other setups. The jaws did not mar the slide. The pusher bit did scrape off a little of the white paint spelling out Trijicon on the side, but you wouldn't be able to tell that happened just by looking at the side of the sight itself. Overall the tool did very well what it was advertised to do and did it smoothly.