Marstar Canada: Browning 1900 Assembly & Disassembly Information

WARNING: Marstar assumes no responsibility for the accuracy of the enclosed diagrams for purposes of stripping or, assembly of parts of any firearm. Stripping, assembly, and reassembly of any firearm or component(s) thereof should be performed by a competent gunsmith. Marstar assumes no liability for any modifications, repairs or alterations performed on any firearm as a result of consulting theses pages. For reference purposes only.

Instructions below refer to part numbers listed on the Browning 1900 exploded diagram. Please note the reference numbers therein do not correspond with the part numbers in our online catalogue.

STOP! Always 'clear' and inspect gun to ensure ammunition is not loaded or chambered before performing maintenance on this or any firearm.

Push the magazine catch (25) forward and remove the safety (19). Draw the slide (4) fully to the rear and check visually that the chamber is empty. Release the slide and pull the trigger. Unscrew and remove the breechblock screws (5) (6), and move the slide forward off the frame (26). Lift the forward end of the recoil spring (1) until it snaps free of the frame. Withdraw the breechblock (11) to the rear. This is sufficient disassembly for normal cleaning. Disassemble further only as required.

Insert a narrow screwdriver blade beneath the hook of the extractor (14). Push the extractor outward until its lug clears the side of the breechblock. Then, pry the extractor forward, bringing its wings into alignment with the disassembly hole. Drift out the cocking lever pin (27), and remove the recoil spring mechanism. Drift out the breechblock plug pin (30) to release the breechblock plug (32) and firing pin (31).

To release the grips (10) (16), first loosen the grip screws (15) and turn the grip retainers (17) from horizontal to vertical with a screwdriver inserted through the bottom of the magazine will. Drift out the magazine catch pin (24), and remove the magazine catch (25) and trigger bar spring (29). Pull the forward end of the trigger bar (22) downward into the magazine will amd remove. Move the safety midway between safe and fire positions and push out with a punch.

Drift out the sear pin (23) and lift out the sear (8). Push the safety spring (28) downward and remove through the underside of the frame. Center the sear spring (7) in the frame with a screwdriver blade, and push upward to remove. Drift out the trigger pin (20), roll the bottom of the trigger forward, and remove through the side of the trigger guard.

During reassembly, replace the trigger and trigger pin, and install the sear spring through the top of the frame. Align the spring vertically, and lever it horizontally against the left side of the frame. Insert the tail of the sear between the sear spring and frame backstop, and replace the sear pin. Install the safety spring from below, sliding it upward against the right side of the frame and behind the sear. Flex the safety spring with padded long nose pliers when installing the safety. Inset shows proper location of springs in the frame. All seat upon the fixed frame pin (A), which is never removed.

Safety must be disengaged to install the breechblock. Depress the trigger and start the breechblock assembly into the frame until resistance is felt, then release the trigger and push the breechblock fully home. Again depress the trigger and pull forward on the recoil spring to release the firing pin from the sear. Grasp the rear of the recoil spring tightly and pull forward over the recoil spring guide (3), until the assembly can be swung down within the frame fork.

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