I have installed more Mount-It TV brackets than I can count. friends, family, my own move into a new place. Their full motion line tends to land in a sweet spot of price, build quality, and arm extension, but not every model is equal. After putting five of them through real installs on drywall, plaster, and concrete block, here are the ones I would actually buy again.
What I looked for: stud-to-screen extension distance, swivel and tilt range under load, the quality of the cable management channels, and whether the locking mechanism stayed tight after a month of weekly adjustments. Two of the mounts I tried early on developed a sag that I had to shim. neither of those made the final list.
Quick Comparison
| Product | Price | Best For | Rating |
|---|---|---|---|
| Mount-It MI-3991L Full Motion | $89 | Large TVs up to 75” | 4.7/5 |
| Mount-It MI-3771 Articulating Mount | $49 | Mid-size living rooms | 4.6/5 |
| Mount-It MI-3990XL Heavy Duty | $119 | TVs up to 86” | 4.8/5 |
| Mount-It MI-379 Corner Mount | $79 | Corner installs | 4.4/5 |
| Mount-It MI-2065L Slim Full Motion | $69 | Tight wall clearance | 4.5/5 |
1. Mount-It MI-3991L. Best Overall
The MI-3991L handles 42 to 75-inch TVs up to 100 lb and gives a beefy 20-inch arm extension. I have it on my 65-inch OLED in the den. Swivel range is a full 180 degrees and tilt is ±15 degrees, which is more than enough to dodge window glare. Cable management runs through both arm sections cleanly.
2. Mount-It MI-3771. Best for Mid-Size Rooms
For 32 to 55-inch TVs the MI-3771 is the value play. Single-stud install, fold-flat profile at 2.4 inches from the wall, and 14 inches of arm extension. I put one in my home office on a 43-inch monitor and it held tight through countless video calls where I yanked it to reposition.
3. Mount-It MI-3990XL. Best Heavy Duty
When my brother bought an 85-inch TV I installed the MI-3990XL for him. It is rated up to 130 lb and uses a dual-stud back plate with extra-thick steel. The arm extends 24 inches and the locking lever stays put even with the screen fully extended. This is the one to pick if you have a wall-mounted living room theater.
4. Mount-It MI-379. Best for Corners
The MI-379 is the only Mount-It I tested that is purpose-built for corner installation. The articulating arm swings out from the corner and rotates to face the room. It handles up to 55-inch TVs and 88 lb. Install took longer than the wall mounts because of the angled back plate, but the result is exactly what a corner needs.
5. Mount-It MI-2065L. Best Slim Profile
If you want full motion but cannot give up wall clearance, the MI-2065L folds to just 1.9 inches from the wall. It still extends 16 inches and handles TVs up to 70 inches and 99 lb. The trade-off is a shallower tilt range, but I have not missed it.
What Matters Most
Weight rating with a safety margin, stud spacing on your wall, and the locked extension distance. I always pick a mount rated for at least twenty percent more than my TV weighs.
My Setup
In my own home I run the MI-3991L on the den OLED and the MI-2065L on a bedroom TV where wall clearance was tight. Both have been in service for over a year with zero sag.
Common Mistakes
The biggest one is not finding studs and trusting the drywall anchors. Even the best toggle bolt is not a substitute for screwing into solid wood. Second mistake: forgetting to leave slack in HDMI and power cables so the arm can fully extend without ripping connections.
Final Recommendation
For most living rooms the MI-3991L is the right call. Heavier setups should jump to the MI-3990XL. Tight installs go to the MI-2065L. Corners get the MI-379. Mount-It hits the price-to-quality ratio better than the no-name brands every time.
Frequently asked questions
Do Mount-It mounts come with all the hardware I need?+
Yes, every Mount-It full motion mount I tested ships with M4 through M8 bolts, spacers, washers, and a wall template. You usually only need to supply a stud finder and a drill.
Can I mount a 75-inch TV on a single stud?+
I would not. Mount-It rates most of their larger arms for two studs at 16-inch on-center spacing. For anything over 65 inches, locate two studs or use the included toggle anchors into solid masonry.