Browning B-80 Owners Manual
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assembly. If you remove the gas piston, replace it so that it stands on its flanges atop the magazine tube. Depress carrier release. Pull the bolt to the rear by means of the operating handle until the bolt locks in the open position. Carefully insert the barrel into the receiver while aligning the barrel guide with the magazine spring retainer and forearm cap stud. (See Figure 7.) 19
Align the forearm with the barrel and carefully slide it over the gas piston and magazine tube. CAUTION: DO NOT APPLY FORCE AS DAMAGE TO THE FOREARM COULD RESULT. ANY RESISTANCE SHOULD BE FOLLOWED BY A VISUAL CHECK FOR ALIGNMENT. (See Figure 8.) Replace the forearm cap assembly. BE CERTAIN THE FOREARM CAP ASSEMBLY IS SCREWED COMPLETELY DOWN SO THAT THE REAR END OF THE FOREARM IS IN FIRM CONTACT WITH THE FRONT END OF THE RECEIVER, (See Figure 9.) Close the bolt using the cartridge stop and bolt release button as shown in Figure 3. NOTE: DO NOT SLAM THE BREECH BOLT HOME BY PRESSING THE CARTRIDGE STOP AND BOLT RELEASE BUTTON AFTER THE BARREL HAS BEEN REMOVED FROM YOUR GUN. When the barrel is present on the gun, the breech bolt stops against the barrel extension. If the breech bolt is slammed home with the barrel removed, the operating handle will be driven against the front edge of the receiver’s ejection port, causing damage. 20
For convenience in casing and carrying the dismantled gun, return the forearm to its position on the magazine tube and screw on the forearm cap assembly. You will then have two compact units. One is the barrel; the other is the action with forearm and stock. The cross -bolt “safety” is designed to block the trigger from traveling. In the “off -safe” or “fire” position a red warning band is visible on the left side of the trigger guard alerting the shooter of the gun’s ready -to-fire status. To accommodate left -handed shooters, an optional left hand “safety” can be installed by a gunsmith. If an optional left hand “safety” is installed, the red warning band will then appear on the right side of the trigger guard. DO NOT DEPEND ON THE RED COLOR ALONE TO INDICATE YOUR GUN’S SAFETY STATUS, as time, exposure to the elements, as well as the abrasive action of cleaning agents can erase it. The “safety” is located as shown in Figure 10. 21
There are two basic methods for getting a loaded shell into the chamber of a B -80. First, the shell can be directly loaded through the ejection port. Second, a shell can be loaded manually from the magazine. Loading of the magazine is the same for both procedures. CAUTION: AT ALL TIMES DURING THE LOADING PROCEDURE, BE SURE YOUR MUZZLE IS POINTING IN A SAFE DIRECTION AND THE SAFETY IS ON SAFE. 22
DO NOT PUT A 20 GAUGE SHELL IN A 12 GAUGE GUN. Store shells of different gauges in completely separate and well -marked containers. See caution number 9 on page 6 of this booklet. Do not store shells of mixed gauges in a common container or in your pockets. LOADING THROUGH THE EJECTION PORT— Pull the operating handle to the rear until the bolt locks in the open position. If the bolt will not lock in rear, press the carrier release. Visually inspect the chamber, carrier, and magazine making sure they are clear. Push the “safety” from left to right or to the “on safe” position. The red band indicating that the B -80 is ready to fire should not show. While pointing the muzzle in a safe direction, insert a cartridge of the proper gauge through the ejection port into the chamber and push the cartridge stop / bolt release button to close the action. Your chamber is now loaded. (See Figure 11.) 23
Insert the second cartridge through the loading port at bottom of receiver as shown in Figure 12. Note: MAKE SURE THAT THE CARTRIDGE IS PUSHED PAST THE CARTRIDGE STOP, AND THE CARRIER IS FREE TO MOVE. (See Figure 13.) 24
Repeat the above procedure until your gun is fully loaded. Your B -80 will hold three 3 inch or three 2 3/4 inch cartridges in its magazine plus one in its chamber. NOTE: A magazine plug restricting the B-80’s magazine capacity to two cartridges is installed at the factory. lnstructions for removing the magazine plug will be found on page 42. LOADING MANUALLY FROM THE MAGAZINE- Make sure the muzzle is pointed in a safe direction. Open the bolt and visually inspect the chamber, carrier, and magazine making sure they are clear. NOTE: If the bolt locks
Schematic is provided for parts Identification only and should not be used as a guide to assemble guns. IMPORTANT: When ordering parts, list part number, part name, callber, model and serial number. CAUTION: Browning parts are made exclusively for Browning guns and should not be used In other guns even though models may be similar. Inadequately fitted parts may be dangerous. 27
B-80 Gas Operated Semi-Automatic Shotgun 12 and 20 Gauge PART NO. DESCRIPTION PART NO. DESCRIPTION P013002 Action Bar &Sleeve 12 Ga. P013118 Cartridge Stop Button P013004 Action Bar &Sleeve 20 Ga. 12 & 20 Ga. P013006 Action Spring 12 & 20 Ga. P013122 Cartridge Stop Pin 12 & 2O Ga. PO13009 Action Spring Follower P013126 Cartridge Stop Spring P013013 P013017 Action Spring Plug Pin P013134 Disconnector Pin 12 & 20 Ga. P013020 12 & 20 Ga. 12 & 20 Ga. Action Spring Plug 12 & 20 Ga. *P013130 Disconnector 12 & 20 Ga. 12 & 20 Ga. P013138 Disconnector Spring Action Tube 12 & 20 Ga. 12 & 20 Ga. *P013025 Bolt Slide 12 Ga. P013142 Disconnector Spring Guide *P013027 Bolt Slide 20 Ga. 12 & 20 Ga. P013030 Breech Bolt 12 Ga PO13146 Extractor 12 Ga. P013035 Breech Bolt 20 Ga. P013148 Extractor 20 Ga. *P013040 Butt Stock 12 Ga. Field PO13150 Extractor Pin 12 & 20 Ga. *P013043 Butt Stock 12 Ga. Superlight P013154 Extractor Spring 12 & 20 Ga. *P013045 Butt Stock 20 Ga. Field P013158 Extractor Spring Plunger *P013047 Butt Stock 20 Ga. Superlight 12 & 20 Ga. *P013050 Carrier 12 Ga. P013162 Ejector 12 & 20 Ga. *P013052 Carrier 20 Ga. P013166 Ejector Pin 12 & 20 Ga. *P013054 Carrier Dog 12 & 20 Ga. P013168 Ejector Pin 12 Ga. Superlight P013058 Carrier Dog Pin 12 & 20 Ga. P013170 Ejector Spring 12 & 20 Ga. P013062 Carrier Dog Spring 12 & 20 Ga. P013174 Ejector Spring Follower PO13066 Carrier Dog Spring Follower 12 & 20 Ga. 12 & 20 Ga. P013178 Firing Pin 12 Ga. P013070 Carrier Latch 12 & 20 Ga. P013180 Firing Pin 20 Ga. P013074 Carrier latch Pin 12 & 20 Ga. P013182 Firing Pin Retaining Pin P013078 Carrier Latch Lock Pin 12 Ga. 12 & 20 Ga. P013184 Firing Pin Retaining Pin PO13079 Carrier Latch Lock Pin 20 Ga. 12 Ga. Superlight P013185 Firing Pin Spring 12 & 20 Ga. P013082 Carrier Latch Spring 12 & 20 Ga. P013190 Forearm Field 12 Ga. P013085 Carrier Pin 12 Ga. P013192 Forearm Superlight 12 Ga P013087 Carrier Pin 20 Ga. P013196 Forearm Field 20 Ga. P013092 Carrier Release 12 & 20 Ga. P013198 Forearm Superlight 20 Ga. P013094 Carrier Release Pin 12 & 20 Ga. P013200 Forearm Cap Assembly P013098 Carrier Release Spring 12 & 20 Ga. 12 & 20 Ga. P013202 Forearm Cap Assembly P013102 P013106 Carrier Spring Guide 12 & 20 Ga. P013208 Forearm Guide Screws P013110 Carrier Spring Guide Pivot Front 12 & 20 Ga. P013222 Gas Piston 12 Ga. P013114 Carrier Spring Guide P013224 Gas Piston 20 Ga. Pivot Rear 12 & 20 Ga. Carrier Spring 12 & 20 Ga. with eyelet 12 & 20 Ga. 12 & 20 Ga. (2 Per Gun) P013226 Gas Piston Seal 12 & 20 Ga *Indicates part must be fitted by Browning Service Department or qualified gunsmith. † Part may be purchased by holden of current valid Federal Firearms License.