Browning B-80 Owners Manual

timid when  it comes to  gun safety.  If you 
observe  other  shooters  violating  any  of 
these  safety precautions,  politely  suggest 
safer handling practices. 
BE  CERTAIN  YOUR GUN IS  UNLOADED 
BEFORE  CLEANING. 
Because  so  many 
gun  accidents  occur  when  a  firearm  is 
being  cleaned,  special  and  extreme  care 
should  be  taken  to  be  sure  your  gun  is 
unloaded  before  disassembly,  cleaning  and 
reassembly.  Keep ammunition away from 
the  cleaning  location.  Never  test  the...

READ  AND  HEED  ALL  WARNINGS in 
the  instruction  booklet  and  on  ammunition 
boxes.  It  is  your  responsibility to secure  the 
most  up-to-date  information  on  the  safe 
handling  procedures  for  your  Browning 
gun.  Browning  cannot  assume  any 
responsibility  when  unsafe  or  improper 
arms  and  ammunition  combinations  are  used. 
PERIODIC  MAINTENANCE— 
UNAUTHORIZED  SERVICING. 
Your  gun 
is  a  mechanical  device  and  is subject  to 
wear  and  requires  periodic  inspection,...

In conventional  gun terminology,  the position and movement  of  shotgun  parts  are  described  as  they 
occur  with  the  shotgun  horizontal  and  in  normal 
firing position; i.e., the muzzle is forward or front; 
the  butt  stock  is  rearward  or  rear;  the  trigger  is  downward or underneath; the sight is upward or on 
top. For general parts nomenclature, refer to Figure 
1. All figures and schematics will refer to all  12 
and 20 gauge E80 Shotguns unless otherwise noted. 
A.  Barrel  K....

The  serial  number  of  your  B-80  shotgun  can  be 
found  on  the  left side  of the  receiver. 
The  Browning B
-80  is shown  disassembled to the 
extent  necessary  in  order  to  follow  instructions 
contained in this book.  (See Figure  1) 
The  B
-80  was designed to  function  with all 
standard  factory  field  loads  and  target  loads.  However,  Browning can assume no responsibility 
for  incidents  which  occur  through  the  use  of 
cartridges  of  non
-standard  dimension  or  those...

This  shotgun  is  gas-operated.  A portion  of the 
expanding  powder  gases  is  bled  off  through  gas 
ports  and  used  to  operate  the  mechanism. 
During  rearward  travel,  the  bolt  extracts  and 
ejects  the  spent  shell  and  cocks  the  hammer. 
During  the  forward  travel  the  next  cartridge  is 
fed  from  the  magazine  in  the  chamber.  This 
operation  is  semi
-automatic;  the  trigger  must  be 
released  and  pulled  for  each  successive  shot. 
After  the  last  cartridge...

CAUTION:  KEEP  YOUR  FINGERS  CLEAR  OF THE EJECTION PORT AS  THE BOLT CLOSES. 
If the  bolt will  not  lock  in  the  open  position, 
press  the  carrier  release  which  is  located  at  the 
rear  of  the  carrier  just  forward  of  the  trigger 
guard  as shown in  Figure  3. 
Before assembling the B
-80,  anti-rust  compounds 
should be  removed  from  all  metal  parts,  paying 
close  attention  to  the  barrel  interior  and  the 
breech  area.  The  various  exposed  metal  parts  of 
14  

your  new  B-80  have  been  coated  with  a  rust 
preventative  compound  for  protection.  Browning 
Gun  Oil  is  ideal  for  removing this  compound  and  for giving your  new gun its first lubrication; 
however,  any quality  gun  oil may be  used. 
You may have to install a recoil adapter in your B80.  B-80’s manufactured prior to  1987 used recoil 
adapters only on 2 3/4” models as described below.  In  1987 the B
-80 Plus was introduced. A B-80 Plus 
is identical if the barrel is inscribed  3”...

Replace  the  forearm  and  forearm  cap  assembly. If  there  has  been  no  recoil  adapter  installed,  and 
your individual  gun  will  not function  reliably 
with  light  target  loads,  you  should  proceed  with 
the following: 
Obtain a B
-80  12  gauge recoil adapter (Part 
number  PO13350) from your dealer,  or from the 
Browning Parts Department in Arnold,  Missouri. 
This  adapter  makes  the  B
-80  one  of  the  most 
versatile  shotguns  on  the  market;  a  shotgun  that 
will  shoot...

Refer to the section  “To Remove The  Bolt 
Assembly,” page 37. After completing steps 
one  through  seven,  you  are  ready  to  install 
the  adapter. 
Remove both  forearm guide screws  from 
the  front  of  receiver,  near  the  magazine 
tube. (See Figure 4.) Slide the recoil 
adapter  over  the  magazine  tube  so  that  it 
conforms  to  the  contour  of  the  front  of  the  receiver,  and  lines up with the  screw  holes. 
Replace screws firmly, but do not 
overtighten.  Refer  to  page  39...

Remove  and  set  aside  the  forearm  cap 
assembly  which  holds  the  forearm  in 
position  on  the  stock/receiver  group.  (See 
Figure 5.) 
Slide  forearm  up  and  remove  from  the 
magazine tube. (See Figure 6.) 
While  holding your  B
-80  upright,  note  the 
position  of  the  gas  piston  which  is  held  in 
position  by  the  forearm  and  forearm  cap 
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