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Black steel full-motion TV wall mount with articulated arm extended, showing tilt and swivel joints, VESA plate and cable covers

Mount-It

Mount-It MI-3991B Full Motion TV Mount 26-55" 77 lbs

SKU CH-ADMH-ZN5K6

Full-motion TV wall mount fits 26 to 55 inch screens up to 77 lbs, extends 17 inches and retracts to 2.5 inches with 90 degree swivel and 15 degree tilt

  • Mounting typeFull Motion
  • Supported TV size< 60 in
  • TV weight limitMax. load 80 lb
  • Swivel range90
  • Tilt angle15
  • Product colorBlack
  • Full motion design adjusts to any seat
  • Extends 17" from wall for corner installs
  • Retracts to 2.5" for low-profile look
  • Supports up to 77 lbs on heavy-duty steel
  • Tilt 15° down to reduce screen glare

Mount for 26–55 inch screens

The MI-3991B is a full-motion TV wall mount built from heavy-duty steel with a durable powder-coated finish. It fits screens from 26 to 55 inches and supports a maximum load of 77 lbs. Compatible VESA patterns include 200x200, 300x300, 400x200 and 400x400. The black mount suits living rooms, bedrooms or corner installations where flexible positioning is needed.

Extension and articulation range

The arm retracts to 2.5 inches from the wall for a low-profile look and extends out to 17 inches for corner or angled viewing. Tilt adjusts 10 degrees up and 15 degrees down to reduce glare, while the mount swivels 90 degrees left or right. A 3-degree rotation range allows fine levelling after installation. These mechanical movements operate without motors or active cooling, so there is no noise or power draw in normal use.

Build integration and cable management

Built-in cable management channels hide cords for a clutter-free installation. The mount attaches to the wall with the included hardware and requires a solid mounting surface capable of holding the combined weight of the bracket and display. Its compact 2.5-inch retracted profile frees up floor space and keeps the screen close to the wall when not extended. Buyers needing support for screens larger than 55 inches or heavier than 77 lbs should select a different mount.

How it compares

Measured against everything we stock in TV Wall Mounts & Install Kits, at today’s prices. Recalculated every night.

Price $34.99
Cheaper than about 66% of the 1,540 comparable items (median $47.99).

Specifications

Product
Product colorBlack
Size & build
Mounting typeFull Motion
TV weight limitMax. load 80 lb
VESA compatibilityYes
Tilt angle15
Compatibility
Supported TV size< 60 in
More details
Swivel range90

Questions about this item

How do I mount the MI-3991B on a stud wall and what is the common mistake?

Attach the wall plate to two wooden studs using the included lag bolts; the step often missed is confirming both bolts hit the centre of each stud, not just the drywall.

What upkeep will the MI-3991B need after a few years of daily swivelling?

Tighten the pivot bolts at the arm joints and re-torque the wall lag bolts annually; the powder-coated steel finish requires no lubrication.

At what point does the 77 lb weight limit become the limiting factor during extended use?

The 77 lb rating is the maximum static load; sustained daily articulation with a TV near that weight will stress the arm pivots before the wall anchors.

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