Browning Superposed 20Ga Lightning Field Forearm, Clamp Type "Old Style", Unfinished

Browning Superposed 20Ga Lightning Field Forearm, Clamp Type "Old Style", Unfinished

Code: B1330R81
Not Yet Rated | Write the First Review

In Stock
Sign up with your email to be notified when this product is back in stock!

Product Description


Description: Browning Superposed 20Ga Lightning Field Forearm, Clamp Type "Old Style", Unfinished. This factory original forearm will fit any 20 gauge Superposed shotgun with a clamp type forearm bracket. This field grade forearm is manufactured from walnut and features a field grade checkering pattern. Midwest Gun Works cannot guarantee a color match on stocks and forends. It is recommended that all Browning parts be installed by a qualified and trained gunsmith.


  • This forearm fits the "Old Style" clamp type bracket with a 1/5" recessed cut, however it can be fitted to the "New Style" bracket with a longer recessed cut.

Please Note: This forearm is a factory new Browning forearm, however due to long term storage and transportation some forearms may have a slight blemish or impression. All Superposed forearms are manufactured "proud" and will require the inlets to be sanded down to fit properly to the forearm bracket, and as such the forearms will need to be refinished after fitting, this includes forearms being sold as finished. Also: No returns will be accepted on any piece of wood being sold as blemished.

Bracket Type: Clamp Type
Gauge: 20 Gauge
Finish: Unfinished
Checkering: Field Grade Checkering

Manufacturer: Browning


  • Brand: Browning
  • Finish / Color: Unfinished
  • Firearm Type: Shotgun
  • Gauge: 20 Gauge
  • Material: Wood
  • Models Fit: Browning Superposed


  • Brand: Browning
  • Finish / Color: Unfinished
  • Firearm Type: Shotgun
  • Gauge: 20 Gauge
  • Material: Wood
  • Models Fit: Browning Superposed

Know Your Gun


Browning Superposed History

The production of the Browning Superposed over/under shotgun began in 1931. It has gone through many configurations in the years and is currently still in production through the Browning International Custom Shop.

The information below is critical must have knowledge necessary for ordering parts, wood, and barrels for your Browning Superposed.

What "Configuration Type", "Tang Style", and "Inletting Style" is your Superposed?

  1. Locating your serial number

    The true complete serial number of the Superposed can only be found underneath of the TOP LEVER. All other numbers represent production sequence only and are used by the factory to denote what barrel set is paired with an individual receiver. See figure 1-A to locate the top lever on your firearm.

    Figure 1-A

  2. Reading Your Serial Number

    Below, use the chart to determine the year your Superposed was manufactured.

    Date Historic Information Serial Number Info
    1931-1939 Production of the Superposed 12 ga. began in 1931. 1-17,000
    Exact production figures are not available. Year of manufacture on Pre-World War II production is strictly a guess at best.
    1939-1947 Production ceased during World War II  
    1948   17100-17200
    1949 Production of the 20 ga. began. First series of numbers are for the 12 ga. Second series of numbers are for the 20 ga.
    These serial numbers for each year from 1949-63 are best guess.
    12 ga.: 17201-20000
    20 ga.: 100-1700
    1950   12 ga.: 20001-21000
    20 ga.: 1701-2800
    1951   12 ga.: 21001-27000
    20 ga.: 2801-2100
    1952   12 ga.: 27001-33000
    20 ga.: 3201-5300
    1953   12 ga.: 33001-37000
    20 ga.: 5301-6700
    1954   12 ga.: 37001-43000
    20 ga.: 6701-8400
    1955   12 ga.: 43001-48000
    20 ga.: 8401-9400
    1956   12 ga.: 48001-54000
    20 ga.: 9401-10500
    1957   12 ga.: 54001-59000
    20 ga.: 10501-11500
    1958   12 ga.: 59001-68500
    20 ga.: 11501-14180
    1959   12 ga.: 68501-76500
    20 ga.: 14181-17060
    1960   12 ga.: 76501-86500
    20 ga.: 17061-20640
    1961   12 ga.: 86501-96500
    20 ga.: 20641-23820
    1962   12 ga.: 96501-99999
    20 ga.: 23821-27300
    1963-1968 From 1962 serial numbers were followed by the date of manufacture.
    2S=12 gauge for the year 1962.
    2V=20 gauge for the year 1962.
    2F=28 gauge for the year 1962.
    2J=.410 bore for the year 1962.
    Example: 6556S2 = A 1962 Superposed 12 ga. shotgun with serial number 6556.
    S=12 gauge
    V=20 gauge
    F=28 gauge
    J=.410 bore
    1969-1975 1969 started using two digits for the date of manufacture:
    S=12 gauge
    V=20 gauge
    F=28 gauge
    J=.410 bore
    This was then preceded by the serial number beginning with 1000.
    Example: 1000S69 = A 1969 Superposed 12 ga.. shotgun with a serial number of 1000.
    S=12 gauge
    V=20 gauge
    F=28 gauge
    J=.410 bore

    In 1975 Browning standardized its serial number identification which it followed until 1998.

    1. Superposed Type:
      213=12 gauge
      233=20 gauge
      173=28 gauge
      183=.410 bore
    2. Date of Manufacture is a two digit code:
      Z=1, Y=2, X=3, W=4, V=5, T=6, R=7, P=8, N=9, M=0
    3. Serial Number beginning with 01001 at the start of each year.
    Serial Number Example:


    This would be an Superposed 12 ga., manufactured in 1976 with the serial number 01001.

    Using the above chart you should now be able to distinguish the year and gauge of your Superposed.

  3. Determining Tang Style

    The Browning Superposed was manufactured with 3 "Tang Styles"

    • Straight Tang also know as Superlight
    • Long Tang
    • Short Tang

    Use Figure 1-B to determine the "Tang Style" of your Superposed.

    Figure 1-B

  4. Determining "Inletting" Type

    Two "Inletting" types have been used in the production of Superposed Shotguns.

    • "Y" Inlet
    • "U" Inlet

    Use Figure 1-C to determine what "Inletting" type your Super uses. Most pre 1967 Superposed were manufactured with the "Y" Inletting however, if your Superposed is a 1966, it could be a "Y" or "U" inlet.

    Determining Inletting Type
    Figure 1-C

With this information, you should be able to correctly identify the most important aspects of your Superposed.

Thank you very much for taking the time to review the above information. If you are in need of more assistance or you have found the above information a useful shopping tool please contact us at


Additional Resources


Customer Ratings & Reviews


Be the first to rate this item!

Write Review