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Deal.ai › Compare

SO-239 CB Antenna L-Bracket Mount vs Firestik Flat Universal CB Antenna Mount

The Firestik is the better buy for most shoppers. It is a flat stainless plate with a screw-on K-4A stud, rated for antennas up to 4 feet, and owners report good SWR and a clean finish. The Workman-style double groove mount is a mirror bracket with a built-in SO-239 socket, so it suits mirror arms and setups where you want a socket rather than a stud. Both are stainless and simple, but the Firestik is more versatile and better documented.

  • Choose the Workman-style double groove mount if you are mounting on a mirror arm or rail and want a built-in SO-239 socket instead of a screw-on stud.
  • Choose the Firestik flat mount if you need to bolt an antenna to any flat surface such as a roof, bumper or bar and want a proven screw-on stud.

Prices

  • SO-239 CB Antenna L-Bracket Mount: $11.99 at Amazon (last seen Nov 10)
  • Firestik Flat Universal CB Antenna Mount: $14.45 at Right Channel Radios (last seen Nov 10)
  • Difference: the SO-239 CB Antenna L-Bracket Mount is $2.46 cheaper than the Firestik Flat Universal CB Antenna Mount at the latest prices (Nov 10)
NOBRAND
Universal CB Antenna Mount SO-239 Stub, Stainless Steel Antenna Pole Mast Mount L-Bracket with U-Bolts and Install Screws 3/8-24 UNF

SO-239 CB Antenna L-Bracket Mount

Universal CB Antenna Mount SO-239 Stub, Stainless Steel Antenna Pole Mast Mount L-Bracket with U-Bolts and Install Screws 3/8-24 UNF

5(1 rating)
$11.99at AmazonChecked Nov 10
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Clamps to mirror arms and tubular rails
  • Built-in SO-239 socket saves an adapter
  • Stainless steel construction
  • Includes U-bolts and screws
Cons
  • No published antenna length rating
  • Generic brand with little documentation
  • Not suited to flat surfaces
Firestik
Firestik Flat Universal CB Antenna Mount

Firestik Flat Universal CB Antenna Mount

5(6 ratings)
$14.45at Right Channel RadiosChecked Nov 10
See all prices and details
Visit Right Channel Radios
Pros
  • Fits any sturdy flat surface
  • Rated for antennas up to 4 feet
  • Screw-on stud works with standard 3/8-24 antenna bases
  • Owners report good SWR and a clean finish
Cons
  • Needs a drilled hole in the mounting surface
  • Not made for clamping to round tubes
  • Short 4-inch plate limits leverage on thin panels

What separates them

SO-239 CB Antenna L-Bracket MountFirestik Flat Universal CB Antenna Mount
Mount typeDouble groove mirror bracket that clamps around a bar or armFlat plate that bolts to a flat surface
Antenna connectionBuilt-in SO-239 socketScrew-on K-4A stud with 3/8-24 thread
Antenna length ratingNo published ratingRated for antennas up to 4 feet
Included hardwareU-bolts and install screwsMounting bolt, nut and washers
MaterialStainless steelRust-resistant stainless steel
Mounting surfaceRound or tubular surfacesFlat surfaces such as roof, bumper or step bumper
Brand supportGeneric brand, no published documentationFirestik, with a published spec sheet and model number
Owner feedbackLittle reportedBuyers report good SWR and a clean finish

Price history

  • SO-239 CB Antenna L-Bracket Mount: lowest $11.99 on Nov 10 at Amazon.

Prices at every store

SO-239 CB Antenna L-Bracket Mount

  • webtron-xNew

    In stock

    $14.99Free shippingChecked Nov 10
    Visit webtron-x
  • CB Radio SupplyNew

    In stock

    $14.24+ $5.00 shippingChecked Nov 10
    Visit CB Radio Supply
  • eBayNew

    In stock

    $19.99Free shippingChecked Nov 10
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $11.99Checked Nov 10
    Visit Amazon

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission.

All 6 stores and price history →

Firestik Flat Universal CB Antenna Mount

  • Right Channel RadiosNew

    In stockReturn policy

    $14.45Checked Nov 10
    Visit Right Channel Radios
Prices and history →

Specs compared

SpecSO-239 CB Antenna L-Bracket MountFirestik Flat Universal CB Antenna Mount
Model NumberDouble Groove CB Radio Antenna Mount W So239 St…—
TypeCB Radio Antenna Mount—
Length—4"
Width—1"
Thickness—1/8"
Mounting Bolt Length—1"
Included Stud—Screw-on style K-4A stud
Max Antenna Length—4' (1.2 m)

What reviewers say

Firestik Flat Universal CB Antenna Mount

Buyers describe it as a simple part that does its job. Several report good SWR right after install, and owners like the finish and the pre-drilled holes.

What people mention
  • SWRPraisedBuyers report good SWR right out of the box once mounted.
  • BuildPraisedOwners call it a simple part that works fine and looks good.
  • FinishPraisedThe stainless finish and pre-drilled holes get positive mention.
  • GroundingMixedIt is only a bracket, so results depend on the installer grounding it properly.

Questions and answers

Which is better for a mirror mount?
The double groove mount. It clamps around a mirror arm with U-bolts, while the Firestik needs a flat surface to bolt to.
Which is better for a roof or bumper?
The Firestik. Its flat plate bolts straight to a roof, bumper or step bumper and is rated for antennas up to 4 feet.
Do both work with a standard 3/8-24 antenna?
Yes. The Firestik includes a screw-on K-4A stud with a 3/8-24 thread, and the double groove mount's SO-239 socket takes a standard stud or PL-259 connection.
Which lasts longer?
Both are stainless steel, so corrosion resistance is similar. The Firestik has a published spec sheet and a known brand behind it, which makes it the safer long-term pick.
Is the Firestik worth stepping up to?
For flat-surface mounting, yes. It is rated for antennas up to 4 feet and owners report good SWR out of the box. For a mirror arm, the double groove mount is the right shape.

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More comparisons

  • Universal Hood CB Mounting Kit vs Firestik Flat Universal CB Antenna Mount
  • Universal CB Antenna Mount SO-239 Stub, Stainless Steel Antenna Pole Mast Mount L-Bracket with U-Bolts and Install Screws 3/8-24 UNF vs Universal Hood CB Mounting Kit

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